# Programming & Scripting **URL:** https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=20 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 21 --- ## [How do I access the size of a sprite?](https://forums.unrealengine.com/t/how-do-i-access-the-size-of-a-sprite/45911)
**Author:** [@anonymous\_user\_3887590c](https://forums.unrealengine.com/u/anonymous_user_3887590c)\ **Replies:** 14\ **Last updated:** [October 7, 2026, 11:23pm UTC](https://forums.unrealengine.com/t/how-do-i-access-the-size-of-a-sprite/45911 "2026-10-07T23:23:45Z")
Right now I just want to find the size of a sprite component in a Blueprint class because I want to use it to restrict the panning of the camera, but after searching the menu I can’t get any further than Get Sprite, whic… --- ## [Multiple chapter 7 weapon variants missing from creative entirely ](https://forums.unrealengine.com/t/multiple-chapter-7-weapon-variants-missing-from-creative-entirely/2838356)
**Author:** [@dudr117](https://forums.unrealengine.com/u/dudr117)\ **Replies:** 0\ **Last updated:** [October 7, 2026, 8:00pm UTC](https://forums.unrealengine.com/t/multiple-chapter-7-weapon-variants-missing-from-creative-entirely/2838356 "2026-10-07T20:00:09Z")
I’ve noticed there are multiple weapons/variants that are missing from creative/UEFN completely. CH7S1: Enhanced Enforcer AR CH7S2: Hitscan Thunder Burst SMG Apex Thunder Burst SMG (Mythic version) Squibbly’s Comba… --- ## [Every time i try to launch grounded2 i get this error EXCEPTION\_ACCESS\_VIOLATION reading address 0x000000017986aec1](https://forums.unrealengine.com/t/every-time-i-try-to-launch-grounded2-i-get-this-error-exception-access-violation-reading-address-0x000000017986aec1/2743020)
**Author:** [@Kdog4278](https://forums.unrealengine.com/u/Kdog4278)\ **Replies:** 2\ **Last updated:** [October 7, 2026, 7:30pm UTC](https://forums.unrealengine.com/t/every-time-i-try-to-launch-grounded2-i-get-this-error-exception-access-violation-reading-address-0x000000017986aec1/2743020 "2026-10-07T19:30:16Z")
I can make it into the main menue of the game where it says click any button but the second i do that it attmpts to log in then crashes. Pls help --- ## [Network prediction and 6DOF Movement ](https://forums.unrealengine.com/t/network-prediction-and-6dof-movement/2831997)
**Author:** [@KadmiumDev](https://forums.unrealengine.com/u/KadmiumDev)\ **Replies:** 20\ **Last updated:** [October 7, 2026, 6:06pm UTC](https://forums.unrealengine.com/t/network-prediction-and-6dof-movement/2831997 "2026-10-07T18:06:11Z")
Aether NPP 6DOF movement showcase 2K video showcase of Aether NPP ​Hey everyone! I’m a solo developer working on modular C++ systems for Unreal Engine 5. I wanted to share a technical breakdown and stress-test data for … --- ## [CelestialVault Runtime Star Field Intensity Control ](https://forums.unrealengine.com/t/celestialvault-runtime-star-field-intensity-control/2730775)
**Author:** [@Louis0wen](https://forums.unrealengine.com/u/Louis0wen)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 4:05pm UTC](https://forums.unrealengine.com/t/celestialvault-runtime-star-field-intensity-control/2730775 "2026-10-07T16:05:48Z")
Hey! I’m trying to drive my Unreal Engine environment via C++ at runtime using the Celestial Vault plugin. So far I’ve managed to integrate all controls, except for Star Field Intensity. The end result I’m looking for is… --- ## [\[Tutorial\] Proper Multiplayer Linetrace from camera](https://forums.unrealengine.com/t/tutorial-proper-multiplayer-linetrace-from-camera/1229523)
**Author:** [@Rev0verDrive](https://forums.unrealengine.com/u/Rev0verDrive)\ **Replies:** 11\ **Last updated:** [October 7, 2026, 4:03pm UTC](https://forums.unrealengine.com/t/tutorial-proper-multiplayer-linetrace-from-camera/1229523 "2026-10-07T16:03:55Z")
When I code multiplayer mechanics I do so with a few base rules. Don’t ever trust the client. Don’t waste bandwidth replicating data you don’t need to. In many multiplayer scenarios we need to execute line traces. One… --- ## [Help! Input mapping stops working after setting a new camera target with blend ](https://forums.unrealengine.com/t/help-input-mapping-stops-working-after-setting-a-new-camera-target-with-blend/2838082)
**Author:** [@Sekyria](https://forums.unrealengine.com/u/Sekyria)\ **Replies:** 3\ **Last updated:** [October 7, 2026, 3:56pm UTC](https://forums.unrealengine.com/t/help-input-mapping-stops-working-after-setting-a-new-camera-target-with-blend/2838082 "2026-10-07T15:56:14Z")
I am a beginner and need help. I am trying to change camera when interacting with an object and change input mapping system. But all the input controlls stop working after changing camera, I cant even get it to outp… --- ## [PoolKit: reduce spawn and destroy cost with drop-in pooling (UE 5.4-5.8)](https://forums.unrealengine.com/t/poolkit-reduce-spawn-and-destroy-cost-with-drop-in-pooling-ue-5-4-5-8/2838305)
**Author:** [@BWGGames](https://forums.unrealengine.com/u/BWGGames)\ **Replies:** 0\ **Last updated:** [October 7, 2026, 3:39pm UTC](https://forums.unrealengine.com/t/poolkit-reduce-spawn-and-destroy-cost-with-drop-in-pooling-ue-5-4-5-8/2838305 "2026-10-07T15:39:58Z")
PoolKit is a pooling plugin from our small studio, Barbed Wire Glove Games. Swap Spawn Actor from Class for Spawn Actor From Pool and Destroy Actor for Release Actor To Pool. No manager actor, base class or interface. It… --- ## [5.8 Lumen disables Planar Reflection?](https://forums.unrealengine.com/t/5-8-lumen-disables-planar-reflection/2836791)
**Author:** [@Cronoss95](https://forums.unrealengine.com/u/Cronoss95)\ **Replies:** 3\ **Last updated:** [October 7, 2026, 2:14pm UTC](https://forums.unrealengine.com/t/5-8-lumen-disables-planar-reflection/2836791 "2026-10-07T14:14:46Z")
Hi! Sorry for the longer post, but I wasnt able to determine a solution via AI and I hope someone here maybe knows the solution. I tried to upgrade my project from 5.7 to 5.8. My scene uses planar reflection in the mai… --- ## [Menu Buttons not being clickable on certain Computers](https://forums.unrealengine.com/t/menu-buttons-not-being-clickable-on-certain-computers/2833121)
**Author:** [@Max20192011](https://forums.unrealengine.com/u/Max20192011)\ **Replies:** 7\ **Last updated:** [October 7, 2026, 1:32pm UTC](https://forums.unrealengine.com/t/menu-buttons-not-being-clickable-on-certain-computers/2833121 "2026-10-07T13:32:22Z")
I have a basic menu screen on a project with the standard options of play, quit etc. The buttons change colours on the different states and all woks fine in the editor. When the game is packaged, it runs on a MacBook p… --- ## [How to implement Chaos Vehicle movement replication in Lyra?](https://forums.unrealengine.com/t/how-to-implement-chaos-vehicle-movement-replication-in-lyra/629242)
**Author:** [@dromo](https://forums.unrealengine.com/u/dromo)\ **Replies:** 2\ **Last updated:** [October 7, 2026, 12:18pm UTC](https://forums.unrealengine.com/t/how-to-implement-chaos-vehicle-movement-replication-in-lyra/629242 "2026-10-07T12:18:17Z")
I’m having trouble Chaos Vehicle movement replication, when I add and possess a vehicle is very laggy/jerky on the client (server works OK and replicates to clients OK). The client eventually gets kicked off with Closin… --- ## [Grab Object Replication Problem](https://forums.unrealengine.com/t/grab-object-replication-problem/1641716)
**Author:** [@Kamilowskyy](https://forums.unrealengine.com/u/Kamilowskyy)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 12:14pm UTC](https://forums.unrealengine.com/t/grab-object-replication-problem/1641716 "2026-10-07T12:14:11Z")
Hello, I’m trying to make a pick up, holding system for my game. Simple system, basically when I click E button then I am able to hold an object and move with it. I was using this tutorial to do the pick up system … --- ## [Picking up item with physics not replicating](https://forums.unrealengine.com/t/picking-up-item-with-physics-not-replicating/1841380)
**Author:** [@Kev\_Dogg](https://forums.unrealengine.com/u/Kev_Dogg)\ **Replies:** 6\ **Last updated:** [October 7, 2026, 12:11pm UTC](https://forums.unrealengine.com/t/picking-up-item-with-physics-not-replicating/1841380 "2026-10-07T12:11:05Z")
I recently followed this tutorial https://youtu.be/wQGnf-YmnhE?si=JOoCMFIZILE6pcCh which sets up blueprints to pickup items using physics and it works great. I tried adding a rpc which allows me to actually pick up the … --- ## [Carrying a Physical Object with Two Players (Blueprint) – Replication Issues ](https://forums.unrealengine.com/t/carrying-a-physical-object-with-two-players-blueprint-replication-issues/2689786)
**Author:** [@DoudouSupreme](https://forums.unrealengine.com/u/DoudouSupreme)\ **Replies:** 4\ **Last updated:** [October 7, 2026, 12:07pm UTC](https://forums.unrealengine.com/t/carrying-a-physical-object-with-two-players-blueprint-replication-issues/2689786 "2026-10-07T12:07:26Z")
Hi, I’m working on a multiplayer setup in Unreal Engine (Blueprint) where two players carry the same physical object together. With one player, everything works fine: Physics behaves correctly Server authority is… --- ## [2 Player Controllable Vehicle in Blueprints](https://forums.unrealengine.com/t/2-player-controllable-vehicle-in-blueprints/2696408)
**Author:** [@ErWiNY](https://forums.unrealengine.com/u/ErWiNY)\ **Replies:** 5\ **Last updated:** [October 7, 2026, 12:04pm UTC](https://forums.unrealengine.com/t/2-player-controllable-vehicle-in-blueprints/2696408 "2026-10-07T12:04:10Z")
I’m developing a coop game that is on Listen Server and I want to add a vehicle that is possessed by the driver that has steering wheel controls and a passenger that has throttle and brake controls. I currently have the… --- ## [Rope Replication Issue Using PhysicsConstraintActor in UE5 Multiplayer ](https://forums.unrealengine.com/t/rope-replication-issue-using-physicsconstraintactor-in-ue5-multiplayer/2612234)
**Author:** [@user\_2fff30a62b56e074928eeb5ba4430a574921e5ac42075f0b5c2ed0](https://forums.unrealengine.com/u/user_2fff30a62b56e074928eeb5ba4430a574921e5ac42075f0b5c2ed0)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 11:51am UTC](https://forums.unrealengine.com/t/rope-replication-issue-using-physicsconstraintactor-in-ue5-multiplayer/2612234 "2026-10-07T11:51:48Z")
Hello, I’m currently developing a game where two players are connected by a rope and move together. The rope is created based on the following video: https://youtu.be/hEMcr98cDJE?si=iH2f-\_7nPjhEg-2-, and it consists of… --- ## [Ue 5.5 physics handle replication issue](https://forums.unrealengine.com/t/ue-5-5-physics-handle-replication-issue/2449462)
**Author:** [@DeathFart](https://forums.unrealengine.com/u/DeathFart)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 11:48am UTC](https://forums.unrealengine.com/t/ue-5-5-physics-handle-replication-issue/2449462 "2026-10-07T11:48:43Z")
Hello Everyone, I am having an issue with creating a grab and hold / drop system over multiplayer. However I have not been able to lift this project off the ground because already I seem to be having an issue with it. I… --- ## [\[UE5, Chaos Vehicles\] ServerUpdateState permanently rejected ("No owning connection for actor") after manual delayed Possess()](https://forums.unrealengine.com/t/ue5-chaos-vehicles-serverupdatestate-permanently-rejected-no-owning-connection-for-actor-after-manual-delayed-possess/2742191)
**Author:** [@menacing0ne](https://forums.unrealengine.com/u/menacing0ne)\ **Replies:** 2\ **Last updated:** [October 7, 2026, 11:45am UTC](https://forums.unrealengine.com/t/ue5-chaos-vehicles-serverupdatestate-permanently-rejected-no-owning-connection-for-actor-after-manual-delayed-possess/2742191 "2026-10-07T11:45:19Z")
\[UE5, Chaos Vehicles\] ServerUpdateState permanently rejected (“No owning connection for actor”) after manual delayed Possess() — Owner/Controller/Role all correct Engine version: UE5.8.1 (Chaos Vehicles plugin) Networkin… --- ## [Character Shakes While Pushing Physics Actor](https://forums.unrealengine.com/t/character-shakes-while-pushing-physics-actor/2836997)
**Author:** [@lionhan\_7](https://forums.unrealengine.com/u/lionhan_7)\ **Replies:** 3\ **Last updated:** [October 7, 2026, 11:34am UTC](https://forums.unrealengine.com/t/character-shakes-while-pushing-physics-actor/2836997 "2026-10-07T11:34:24Z")
Hi all. Using UE5.8.2 Tried many versions of settings of both char and physics object. I still couldnt solve. Here are example settings. Collision of character capsule: Collision of character mesh: Physics tur… --- ## [Best Practice for creating a replicated "Push and Pull system" (similar to the mechanics from games like Moving Out)? ](https://forums.unrealengine.com/t/best-practice-for-creating-a-replicated-push-and-pull-system-similar-to-the-mechanics-from-games-like-moving-out/2765186)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 5\ **Last updated:** [October 7, 2026, 11:26am UTC](https://forums.unrealengine.com/t/best-practice-for-creating-a-replicated-push-and-pull-system-similar-to-the-mechanics-from-games-like-moving-out/2765186 "2026-10-07T11:26:46Z")
Hello, I want to create a multiplayer-ready “Push and Pull system” , similar to the mechanics from games like “Moving Out” or “The Stretchers”. The player should be able to grab a physical object and push or pull it. Ot… --- ## [Client side replication is jittering](https://forums.unrealengine.com/t/client-side-replication-is-jittering/2683735)
**Author:** [@9Evgeny9](https://forums.unrealengine.com/u/9Evgeny9)\ **Replies:** 5\ **Last updated:** [October 7, 2026, 11:23am UTC](https://forums.unrealengine.com/t/client-side-replication-is-jittering/2683735 "2026-10-07T11:23:24Z")
I have replicated Actor “Cube“, with settings Also root of actor is StaticMeshComponent (with cube.fbx) When i interact with Cube on listen server, interaction is smooth, but on client side interaction is jittering.… --- ## [Chaos Mover ](https://forums.unrealengine.com/t/chaos-mover/2733017)
**Author:** [@jacques\_kerner](https://forums.unrealengine.com/u/jacques_kerner)\ **Replies:** 2\ **Last updated:** [October 7, 2026, 11:16am UTC](https://forums.unrealengine.com/t/chaos-mover/2733017 "2026-10-07T11:16:50Z")
Chaos Mover Physics-threaded character movement simulation with networked resimulation and thread-safe simulation authoring. Chaos Mover is an experimental feature. For in-depth discussion, community feedback, and known… --- ## [Mass Item Method Viable](https://forums.unrealengine.com/t/mass-item-method-viable/2838017)
**Author:** [@limlou20](https://forums.unrealengine.com/u/limlou20)\ **Replies:** 4\ **Last updated:** [October 7, 2026, 10:34am UTC](https://forums.unrealengine.com/t/mass-item-method-viable/2838017 "2026-10-07T10:34:04Z")
So I’m currently working on a game where you clean a planet of trash, one of the ideas i had was to make it on scale that I’ve never seen before in terms of visual mass. so basically hundreds of thousands to a million tr… --- ## [UE5.7からUE5.8へ移行した際にUnknownRefMipsが大量に増える ](https://forums.unrealengine.com/t/ue5-7-ue5-8-unknownrefmips/2849859)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 7\ **Last updated:** [October 7, 2026, 1:41am UTC](https://forums.unrealengine.com/t/ue5-7-ue5-8-unknownrefmips/2849859 "2026-10-07T01:41:13Z")
5.7から5.8に移行したところStreamingメモリのあふれが発生しました。 \
確認してみたところUnknownRefMipsによる最大ミップの読み込みが増えていました。 \
おそらくFastGeo周りでこのあたり変化したように見えますが、FastGeoなのかどうかはつかめていません。 こちら解決方法ありますでしょうか？ \[Attachment Removed\] --- ## [Follow-up to \[Suboptimal Paths generated on somewhat bumpy Landscape Terrain in WP\] ](https://forums.unrealengine.com/t/follow-up-to-suboptimal-paths-generated-on-somewhat-bumpy-landscape-terrain-in-wp/2851846)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [October 8, 2026, 8:07pm UTC](https://forums.unrealengine.com/t/follow-up-to-suboptimal-paths-generated-on-somewhat-bumpy-landscape-terrain-in-wp/2851846 "2026-10-08T20:07:15Z")
This is a follow-up to the following post: \[Suboptimal Paths generated on somewhat bumpy Landscape Terrain in \[Content removed\] The engineer handling this issue created a sample project where ・Cell Size is as small as… --- ## [How to assign different speeds at different points along a spline ](https://forums.unrealengine.com/t/how-to-assign-different-speeds-at-different-points-along-a-spline/2837530)
**Author:** [@Veron1ca\_a](https://forums.unrealengine.com/u/Veron1ca_a)\ **Replies:** 2\ **Last updated:** [October 6, 2026, 11:33pm UTC](https://forums.unrealengine.com/t/how-to-assign-different-speeds-at-different-points-along-a-spline/2837530 "2026-10-06T23:33:41Z")
I am trying to create a fish movement system in unreal using a spline. The fish should swim along the spline, jump out of the water, slow down near the highest point of the jump, accelerate as it falls, and then return t… --- ## [For Loop for "All in array are true"](https://forums.unrealengine.com/t/for-loop-for-all-in-array-are-true/2837428)
**Author:** [@Kazuki\_P](https://forums.unrealengine.com/u/Kazuki_P)\ **Replies:** 8\ **Last updated:** [October 6, 2026, 8:08pm UTC](https://forums.unrealengine.com/t/for-loop-for-all-in-array-are-true/2837428 "2026-10-06T20:08:18Z")
Hi all. I’m looking for some help on the best way to do this. I am trying to learn how to best use for loops and avoid making staircases of branches. I have a working version of this through branches but I don’t believe … --- ## [Gameplay Camera Pawn Control Rotation](https://forums.unrealengine.com/t/gameplay-camera-pawn-control-rotation/2837406)
**Author:** [@Origins](https://forums.unrealengine.com/u/Origins)\ **Replies:** 1\ **Last updated:** [October 6, 2026, 6:19pm UTC](https://forums.unrealengine.com/t/gameplay-camera-pawn-control-rotation/2837406 "2026-10-06T18:19:40Z")
How can I achieve pawn control rotation with gameplay camera system and what are he nodes I have to use. In character class I have used traditional method adding camera boom and changing pawn control rotation boolean an… --- ## [ EpicGames GitHub – ChatGPT Codex Connector installation request pending ](https://forums.unrealengine.com/t/epicgames-github-chatgpt-codex-connector-installation-request-pending/2838015)
**Author:** [@Touchdownbeach](https://forums.unrealengine.com/u/Touchdownbeach)\ **Replies:** 0\ **Last updated:** [October 6, 2026, 3:51pm UTC](https://forums.unrealengine.com/t/epicgames-github-chatgpt-codex-connector-installation-request-pending/2838015 "2026-10-06T15:51:32Z")
Hello, I am a member of the EpicGames GitHub organization and I already have access to the private EpicGames/UnrealEngine repository. I am trying to use OpenAI’s ChatGPT Codex Connector with the Unreal Engine source re… --- ## [\[Help\] UE 5.8 Cannot install VisualStudioTools plugin with compile error “cannot open include file: ‘BlueprintGraphClasses.h’”](https://forums.unrealengine.com/t/help-ue-5-8-cannot-install-visualstudiotools-plugin-with-compile-error-cannot-open-include-file-blueprintgraphclasses-h/2730431)
**Author:** [@UndeadZombie](https://forums.unrealengine.com/u/UndeadZombie)\ **Replies:** 6\ **Last updated:** [October 6, 2026, 3:22pm UTC](https://forums.unrealengine.com/t/help-ue-5-8-cannot-install-visualstudiotools-plugin-with-compile-error-cannot-open-include-file-blueprintgraphclasses-h/2730431 "2026-10-06T15:22:54Z")
I’m unable to install the VisualStudioTools plugin in the latest UE 5.8. I created a C++ project based on UE 5.8. After opening Visual Studio and checking the Unreal Engine integration configuration, it prompted me to i… [Previous page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=19) [Next page](https://forums.unrealengine.com/c/development-discussion/programming-scripting/148.md?page=21)