# \#overlap-actors

**URL:** https://forums.unrealengine.com/tag/overlap-actors/10470.md

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## [Actor end overlap trigger while overlaping a new actor](https://forums.unrealengine.com/t/actor-end-overlap-trigger-while-overlaping-a-new-actor/445150)

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**Author:** [@SevenRedFalls](https://forums.unrealengine.com/u/SevenRedFalls)\
**Replies:** 3\
**Last updated:** [August 3, 2025, 1:11pm UTC](https://forums.unrealengine.com/t/actor-end-overlap-trigger-while-overlaping-a-new-actor/445150 "2025-08-03T13:11:46Z")

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Okey, so If I understand correctly, you want to find out if any actor is overlapping with actor A, therefore you set a variable to true when someone enters and false when they leave. If you just want to find out if any …

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## [Continuous Overlap while in motion?](https://forums.unrealengine.com/t/continuous-overlap-while-in-motion/469229)

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**Author:** [@anonymous\_user\_87986e9f](https://forums.unrealengine.com/u/anonymous_user_87986e9f)\
**Replies:** 5\
**Last updated:** [October 16, 2024, 1:34pm UTC](https://forums.unrealengine.com/t/continuous-overlap-while-in-motion/469229 "2024-10-16T13:34:19Z")

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I want to have certain events fire while my character is overlapped with a region (which is defined by a knee-high skeletal mesh for fog purposes). To this end I have the region registering to receive an OnTick event fro…

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## [Event BeginOverlap not always working](https://forums.unrealengine.com/t/event-beginoverlap-not-always-working/414589)

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**Author:** [@anonymous\_user\_a8729913](https://forums.unrealengine.com/u/anonymous_user_a8729913)\
**Replies:** 10\
**Last updated:** [August 31, 2024, 3:50pm UTC](https://forums.unrealengine.com/t/event-beginoverlap-not-always-working/414589 "2024-08-31T15:50:27Z")

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So i’m making an fps game, and when i fire a weapon it spawns a bullet. When this bullet overlaps a player, it should deal damage. This all works fine when i have a framerate of 50+. But when my framerate drops below thi…

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## [Get hit child actor](https://forums.unrealengine.com/t/get-hit-child-actor/434477)

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**Author:** [@D.Shchepetkov](https://forums.unrealengine.com/u/D.Shchepetkov)\
**Replies:** 10\
**Last updated:** [August 8, 2024, 2:20am UTC](https://forums.unrealengine.com/t/get-hit-child-actor/434477 "2024-08-08T02:20:50Z")

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Hello all, try find information how to get child actor when it hit or overlap. I have actor (master\_enemy) and I create child class. I want get chid actor when this actor get hit, how I can do it?

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## [Get material of overlapping actor,](https://forums.unrealengine.com/t/get-material-of-overlapping-actor/1906892)

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**Author:** [@SmexyCelery](https://forums.unrealengine.com/u/SmexyCelery)\
**Replies:** 3\
**Last updated:** [June 19, 2024, 10:28pm UTC](https://forums.unrealengine.com/t/get-material-of-overlapping-actor/1906892 "2024-06-19T22:28:22Z")

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I currently have a blueprint where players can put a physics object on a pressure plate that triggers a door to open. I want to add a check in between to make sure the physics object and pressure plate have matching mate…

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## [Overlap check on the geometry of an actor instead of against the world for optimization.](https://forums.unrealengine.com/t/overlap-check-on-the-geometry-of-an-actor-instead-of-against-the-world-for-optimization/1907538)

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**Author:** [@Melvin\_Brink](https://forums.unrealengine.com/u/Melvin_Brink)\
**Replies:** 5\
**Last updated:** [June 18, 2024, 3:11pm UTC](https://forums.unrealengine.com/t/overlap-check-on-the-geometry-of-an-actor-instead-of-against-the-world-for-optimization/1907538 "2024-06-18T15:11:19Z")

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Hi, I have been looking for a way to do overlap checks against the geometry of an actors. But as far as I know, there only exists overlap checks that trace against the world. While this does what I want it to, it seems …

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## [Making the character die hitting certain object](https://forums.unrealengine.com/t/making-the-character-die-hitting-certain-object/461243)

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**Author:** [@Anan\_sadi](https://forums.unrealengine.com/u/Anan_sadi)\
**Replies:** 3\
**Last updated:** [May 6, 2024, 3:43pm UTC](https://forums.unrealengine.com/t/making-the-character-die-hitting-certain-object/461243 "2024-05-06T15:43:29Z")

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I was making an endless run game but I ran into a problem, I want the player to be destroyed when hitting certain objects (obstacles), but the problem is that i have many objects that the player could hit or overlap wit…

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## [Instanced static mesh - sweep result hit item result returning "-1" in UE 5.3](https://forums.unrealengine.com/t/instanced-static-mesh-sweep-result-hit-item-result-returning-1-in-ue-5-3/1309203)

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**Author:** [@SHOBBIT](https://forums.unrealengine.com/u/SHOBBIT)\
**Replies:** 2\
**Last updated:** [January 19, 2024, 6:44pm UTC](https://forums.unrealengine.com/t/instanced-static-mesh-sweep-result-hit-item-result-returning-1-in-ue-5-3/1309203 "2024-01-19T18:44:01Z")

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Hello everyone I think I have encountered a bug in Unreal Engine 5.3 where the ISM Sweep Result Hit Item is returning “-1” instead of the instance index that it is expected to return (Cuz in previous engine versions it …

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## [How to create overlap events with C++ with BaseCharacter CapsuleComponent ?](https://forums.unrealengine.com/t/how-to-create-overlap-events-with-c-with-basecharacter-capsulecomponent/1372004)

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**Author:** [@MR.JAJ](https://forums.unrealengine.com/u/MR.JAJ)\
**Replies:** 3\
**Last updated:** [November 8, 2023, 4:07pm UTC](https://forums.unrealengine.com/t/how-to-create-overlap-events-with-c-with-basecharacter-capsulecomponent/1372004 "2023-11-08T16:07:12Z")

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Hello, I’m new to C++ (and have like 2 days of experience using it) I would like to recreate something as simple as overlapping an actor with the base character’s CapsuleComponent. The overlapped actor only has a S…

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## [How do I detect when an actor enters the camera?](https://forums.unrealengine.com/t/how-do-i-detect-when-an-actor-enters-the-camera/472648)

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**Author:** [@anonymous\_user\_b67d0e66](https://forums.unrealengine.com/u/anonymous_user_b67d0e66)\
**Replies:** 2\
**Last updated:** [September 25, 2023, 8:08pm UTC](https://forums.unrealengine.com/t/how-do-i-detect-when-an-actor-enters-the-camera/472648 "2023-09-25T20:08:47Z")

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What I’m currently doing: The camera collision channel doesn’t seem to ever trigger for overlaps, so I made a custom camera component where a collision box is attached to it (this is a top-down game so the view won’t ch…

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## [Performance Issue using Overlap Sphere Components on AI Characters](https://forums.unrealengine.com/t/performance-issue-using-overlap-sphere-components-on-ai-characters/1311586)

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**Author:** [@ackyshacky](https://forums.unrealengine.com/u/ackyshacky)\
**Replies:** 8\
**Last updated:** [September 25, 2023, 5:00pm UTC](https://forums.unrealengine.com/t/performance-issue-using-overlap-sphere-components-on-ai-characters/1311586 "2023-09-25T17:00:32Z")

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In my multiplayer game, I have added 2 sphere components to an AI character; one that detects when a player enters it, and a larger one that detects when a player exits it. I have about 20 of these AI’s spawned in the le…

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## [OnComponentEndOverlap calls after EndPlay when instanced as a child actor](https://forums.unrealengine.com/t/oncomponentendoverlap-calls-after-endplay-when-instanced-as-a-child-actor/423967)

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**Author:** [@Lukystar](https://forums.unrealengine.com/u/Lukystar)\
**Replies:** 1\
**Last updated:** [March 4, 2023, 2:09pm UTC](https://forums.unrealengine.com/t/oncomponentendoverlap-calls-after-endplay-when-instanced-as-a-child-actor/423967 "2023-03-04T14:09:11Z")

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Hi there, I have two blueprints The first is a classical Begin and End Overlap Logger with a simple box collision in it. The second blueprint contains the first as a child actor. Now, the problem which I encoun…

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## [Widget equivalent for HUDs "Get Actors in Selection Rectangle"](https://forums.unrealengine.com/t/widget-equivalent-for-huds-get-actors-in-selection-rectangle/485320)

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**Author:** [@devalx](https://forums.unrealengine.com/u/devalx)\
**Replies:** 1\
**Last updated:** [November 28, 2022, 12:49am UTC](https://forums.unrealengine.com/t/widget-equivalent-for-huds-get-actors-in-selection-rectangle/485320 "2022-11-28T00:49:20Z")

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Hey, i am currently trying to create an RTS-style game, with the camera in birds-eye view and the player can select units on the ground. Now i am trying to implement the multi-selection of units by drawing a box around…

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## [Detect widget overlapping another widget ?](https://forums.unrealengine.com/t/detect-widget-overlapping-another-widget/489919)

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**Author:** [@Jau\_Studio](https://forums.unrealengine.com/u/Jau_Studio)\
**Replies:** 1\
**Last updated:** [October 8, 2022, 7:54am UTC](https://forums.unrealengine.com/t/detect-widget-overlapping-another-widget/489919 "2022-10-08T07:54:47Z")

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Hello, Is there a way to detect when a widget is overlapping another one ? I would like a widget to know (and “who”) when a second one is displayed on top of it. Thanks !

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## [The Actors are touching and affecting each other without being in Contact](https://forums.unrealengine.com/t/the-actors-are-touching-and-affecting-each-other-without-being-in-contact/477389)

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**Author:** [@Hikaribyakko](https://forums.unrealengine.com/u/Hikaribyakko)\
**Replies:** 2\
**Last updated:** [August 13, 2022, 5:15pm UTC](https://forums.unrealengine.com/t/the-actors-are-touching-and-affecting-each-other-without-being-in-contact/477389 "2022-08-13T17:15:11Z")

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Hello, I am new in UE4 and i am using Flex Particels as Collision but it doesn’t work li it should to work. The gears are touching and affecting each other without being in Contact (visually). i am trying to use Delta t…

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## [Trigger Post Process on Begin Overlap](https://forums.unrealengine.com/t/trigger-post-process-on-begin-overlap/425245)

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**Author:** [@gestoryscht](https://forums.unrealengine.com/u/gestoryscht)\
**Replies:** 10\
**Last updated:** [April 28, 2022, 11:49pm UTC](https://forums.unrealengine.com/t/trigger-post-process-on-begin-overlap/425245 "2022-04-28T23:49:30Z")

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Hi guys, I want to add a post process effect to an actor. When the player overlaps the sphere radius, the effect begins to play. For this I set this blueprint - and it kind of works. But only for a single tick. After th…

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## [So the on actor begin overlap is not working in a pawn that i created](https://forums.unrealengine.com/t/so-the-on-actor-begin-overlap-is-not-working-in-a-pawn-that-i-created/490830)

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**Author:** [@greysky9](https://forums.unrealengine.com/u/greysky9)\
**Replies:** 2\
**Last updated:** [January 26, 2022, 4:35pm UTC](https://forums.unrealengine.com/t/so-the-on-actor-begin-overlap-is-not-working-in-a-pawn-that-i-created/490830 "2022-01-26T16:35:44Z")

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here it shows the collision which i have here it shows the code that i run when the object is overlapped in render i made it hidden in game but that doesnt mean that it shouldnt work tell me if it does. please h…

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## [Multiplayer OnOverLapBegin called in every actor at once](https://forums.unrealengine.com/t/multiplayer-onoverlapbegin-called-in-every-actor-at-once/438584)

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**Author:** [@kp6nn](https://forums.unrealengine.com/u/kp6nn)\
**Replies:** 6\
**Last updated:** [November 24, 2021, 11:14am UTC](https://forums.unrealengine.com/t/multiplayer-onoverlapbegin-called-in-every-actor-at-once/438584 "2021-11-24T11:14:06Z")

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Backstory: I’m working on a multiplayer game Problem: In my game there are 4 players. In the map I have a triggerbox, if one of the Characters overlaps with the triggerbox, it is activated in all of them. My overlap …

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## [C++ IsOverlappingActor always false and GetOverlappingActors always empty](https://forums.unrealengine.com/t/c-isoverlappingactor-always-false-and-getoverlappingactors-always-empty/490972)

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**Author:** [@HSwinnie](https://forums.unrealengine.com/u/HSwinnie)\
**Replies:** 1\
**Last updated:** [November 19, 2021, 6:50pm UTC](https://forums.unrealengine.com/t/c-isoverlappingactor-always-false-and-getoverlappingactors-always-empty/490972 "2021-11-19T18:50:15Z")

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I’m trying to place rooms into a persistent level using level streaming. When the rooms are loaded in I check if the triggerbox inside of the room is overlapping with any of the triggerboxes that are already in the level…

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## [OpenXR VR template On Component Begin Overlap with motion controller](https://forums.unrealengine.com/t/openxr-vr-template-on-component-begin-overlap-with-motion-controller/490526)

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**Author:** [@anonymous\_user\_adbab883](https://forums.unrealengine.com/u/anonymous_user_adbab883)\
**Replies:** 2\
**Last updated:** [November 19, 2021, 6:43am UTC](https://forums.unrealengine.com/t/openxr-vr-template-on-component-begin-overlap-with-motion-controller/490526 "2021-11-19T06:43:00Z")

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I’m new pretty new to UnreaI so this might be me just not knowing anything, but I have a video that I want to be set to be played once a motion controller presses a button, but I can’t seem to find anywhere how to refere…

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## [How to make Water Body (ocean) rise upon entering a trigger volume](https://forums.unrealengine.com/t/how-to-make-water-body-ocean-rise-upon-entering-a-trigger-volume/490241)

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**Author:** [@anonymous\_user\_778acb921](https://forums.unrealengine.com/u/anonymous_user_778acb921)\
**Replies:** 0\
**Last updated:** [October 25, 2021, 6:05pm UTC](https://forums.unrealengine.com/t/how-to-make-water-body-ocean-rise-upon-entering-a-trigger-volume/490241 "2021-10-25T18:05:45Z")

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Hi everybody! Is there an easy way of making surrounding Water Body (water plugin) rise upon entering a trigger point (On Actor Being Overlap) as a player in Blueprint? I want to simulate flooding, so that the water le…

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## [Cant set actor location using ragdolls](https://forums.unrealengine.com/t/cant-set-actor-location-using-ragdolls/489779)

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**Author:** [@Flame](https://forums.unrealengine.com/u/Flame)\
**Replies:** 2\
**Last updated:** [October 17, 2021, 2:36pm UTC](https://forums.unrealengine.com/t/cant-set-actor-location-using-ragdolls/489779 "2021-10-17T14:36:30Z")

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hi there, i cant get to set these character actors location when set to ragdoll. I know they are being detected as overlap because of that print, but they dont move at all. anything special i need to do when using r…

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## [Moving Actor Won't Collide](https://forums.unrealengine.com/t/moving-actor-wont-collide/489321)

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**Author:** [@anonymous\_user\_b3bc4d7a](https://forums.unrealengine.com/u/anonymous_user_b3bc4d7a)\
**Replies:** 8\
**Last updated:** [October 2, 2021, 1:22am UTC](https://forums.unrealengine.com/t/moving-actor-wont-collide/489321 "2021-10-02T01:22:50Z")

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Hello, I’m making an endless runner game, and I have a car that will move forward and hit an enemy. But when it’s moving, it doesn’t collide with the enemy. But if the enemy is overlapping the car when it spawns, it coll…

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## [,Water Collision Issue with Lake and Rivers](https://forums.unrealengine.com/t/water-collision-issue-with-lake-and-rivers/488361)

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**Author:** [@Ixonist](https://forums.unrealengine.com/u/Ixonist)\
**Replies:** 0\
**Last updated:** [September 3, 2021, 6:03pm UTC](https://forums.unrealengine.com/t/water-collision-issue-with-lake-and-rivers/488361 "2021-09-03T18:03:30Z")

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I have a little problem with collision with Lake and Rivers. When I place a river or a lake, the collision is made way before I enter in water. For now, I scan the water with actor who overlap my player with water body…

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## [How to check what a punch has hit?](https://forums.unrealengine.com/t/how-to-check-what-a-punch-has-hit/487838)

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**Author:** [@AleMarcati](https://forums.unrealengine.com/u/AleMarcati)\
**Replies:** 3\
**Last updated:** [August 26, 2021, 2:24pm UTC](https://forums.unrealengine.com/t/how-to-check-what-a-punch-has-hit/487838 "2021-08-26T14:24:17Z")

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I have a character that throws punches. I added a collision capsule attached to the character’s hand and, when he attacks, this capsule checks for overlaps and applies damage if it overlaps an enemy. I’m using Unreal’s …

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## [How can Niagara System generate overlap event?](https://forums.unrealengine.com/t/how-can-niagara-system-generate-overlap-event/487307)

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**Author:** [@Jenkins\_Gage](https://forums.unrealengine.com/u/Jenkins_Gage)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 6:31am UTC](https://forums.unrealengine.com/t/how-can-niagara-system-generate-overlap-event/487307 "2021-08-12T06:31:05Z")

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I have a Niagara System with Collision and Export Particle Data To Blueprint modules which does a good job on generating collision event. But it only works if CPU Collision Trace Channel is set to block target channel. W…

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## [Actors snap to surfaces even though 'Surface Snapping' is disabled.](https://forums.unrealengine.com/t/actors-snap-to-surfaces-even-though-surface-snapping-is-disabled/467465)

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**Author:** [@KeyC0de](https://forums.unrealengine.com/u/KeyC0de)\
**Replies:** 5\
**Last updated:** [July 30, 2021, 8:45pm UTC](https://forums.unrealengine.com/t/actors-snap-to-surfaces-even-though-surface-snapping-is-disabled/467465 "2021-07-30T20:45:06Z")

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That is exactly what I said; I turned it off there…

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## [How to force an actor array to recognize a class](https://forums.unrealengine.com/t/how-to-force-an-actor-array-to-recognize-a-class/485642)

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**Author:** [@anonymous\_user\_b3bc4d7a](https://forums.unrealengine.com/u/anonymous_user_b3bc4d7a)\
**Replies:** 8\
**Last updated:** [July 2, 2021, 5:15am UTC](https://forums.unrealengine.com/t/how-to-force-an-actor-array-to-recognize-a-class/485642 "2021-07-02T05:15:09Z")

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So, I have a complex question that I’m not sure how to describe. I have a box collision on one “enemy” that is supposed to detect neighboring enemies, which is fine and dandy. But later, said enemies need to perform an i…

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## [Physics simulated actor gets stuck in other actors it needs to overlap](https://forums.unrealengine.com/t/physics-simulated-actor-gets-stuck-in-other-actors-it-needs-to-overlap/411367)

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**Author:** [@koloden](https://forums.unrealengine.com/u/koloden)\
**Replies:** 9\
**Last updated:** [June 29, 2021, 6:58pm UTC](https://forums.unrealengine.com/t/physics-simulated-actor-gets-stuck-in-other-actors-it-needs-to-overlap/411367 "2021-06-29T18:58:48Z")

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Repro steps: Create a new project using Side Scroller Template (just for convenience). Create a new blueprint class TestActor using Actor as parent. Add a Box Collision component to the TestActor, make it a root compo…

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## [Should components with Generate Overlap Events off trigger an overlap?](https://forums.unrealengine.com/t/should-components-with-generate-overlap-events-off-trigger-an-overlap/484265)

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**Author:** [@zeaf](https://forums.unrealengine.com/u/zeaf)\
**Replies:** 2\
**Last updated:** [June 2, 2021, 10:06am UTC](https://forums.unrealengine.com/t/should-components-with-generate-overlap-events-off-trigger-an-overlap/484265 "2021-06-02T10:06:56Z")

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My understanding is that if I untick the box then that component shouldn’t be overlapped by any overlap function, however I am seeing that SphereOverlapActors (therefore also SphereOverlapComponents) still overlaps my co…

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