# \#not-simulating **URL:** https://forums.unrealengine.com/tag/not-simulating/10311.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Groom not simulating physics but only in packaged game](https://forums.unrealengine.com/t/groom-not-simulating-physics-but-only-in-packaged-game/484451)
**Author:** [@PenumbraCEO](https://forums.unrealengine.com/u/PenumbraCEO)\ **Replies:** 7\ **Last updated:** [September 18, 2024, 2:51pm UTC](https://forums.unrealengine.com/t/groom-not-simulating-physics-but-only-in-packaged-game/484451 "2024-09-18T14:51:38Z")
Basically what it says, no matter what I do I can’t get physics to simulate on my groom components after packaging the project. Viewport PIE, character preview, windows PIE, standalone all work fine, but once I actually… --- ## [Landscape grass type not showing up at runtime](https://forums.unrealengine.com/t/landscape-grass-type-not-showing-up-at-runtime/406194)
**Author:** [@libellum](https://forums.unrealengine.com/u/libellum)\ **Replies:** 6\ **Last updated:** [February 20, 2024, 6:40pm UTC](https://forums.unrealengine.com/t/landscape-grass-type-not-showing-up-at-runtime/406194 "2024-02-20T18:40:15Z")
Pretty much exactly what it the title says. Landscape grass type is showing up in editor, but when you play/simulate it doesn’t show up. I tried waiting after simulating but it doesn’t seem to load. --- ## [Metahuman hair simulation not working in render](https://forums.unrealengine.com/t/metahuman-hair-simulation-not-working-in-render/1429813)
**Author:** [@Colonelx](https://forums.unrealengine.com/u/Colonelx)\ **Replies:** 0\ **Last updated:** [November 28, 2023, 9:03pm UTC](https://forums.unrealengine.com/t/metahuman-hair-simulation-not-working-in-render/1429813 "2023-11-28T21:03:22Z")
Hi, I’ve been grappling with this issue for couple of month. I’m attempting to render (MRQ) my MetaHuman character animation with Hair Simulation “ON”. While it simulates perfectly in the editor, after rendering, it appe… --- ## [Attempting to create a joint between objects that are both static. No joint created](https://forums.unrealengine.com/t/attempting-to-create-a-joint-between-objects-that-are-both-static-no-joint-created/407751)
**Author:** [@Rasponien](https://forums.unrealengine.com/u/Rasponien)\ **Replies:** 4\ **Last updated:** [September 21, 2023, 10:33pm UTC](https://forums.unrealengine.com/t/attempting-to-create-a-joint-between-objects-that-are-both-static-no-joint-created/407751 "2023-09-21T22:33:39Z")
Hello! I’ve been trying to create a ladder for my 2D game and I need my ladder links connect to eachother with joints. However, I’ve been unsuccessful when it comes to connecting two paperspritecomponents to eachother i… --- ## [Unable to check simulate physics on chaos destruction mesh](https://forums.unrealengine.com/t/unable-to-check-simulate-physics-on-chaos-destruction-mesh/490032)
**Author:** [@Harold1995](https://forums.unrealengine.com/u/Harold1995)\ **Replies:** 0\ **Last updated:** [October 19, 2021, 7:28pm UTC](https://forums.unrealengine.com/t/unable-to-check-simulate-physics-on-chaos-destruction-mesh/490032 "2021-10-19T19:28:49Z")
I want to create a destructible mesh that is also simulating physics but the checkbox is greyed out. The asset is a Geometry Collection. Any way to have both a destructible mesh and simulate physics on? Thanks in advanc… --- ## [Keep Simulation Changes does not work with Fracture Assets?](https://forums.unrealengine.com/t/keep-simulation-changes-does-not-work-with-fracture-assets/489748)
**Author:** [@Msa-Artist](https://forums.unrealengine.com/u/Msa-Artist)\ **Replies:** 0\ **Last updated:** [October 11, 2021, 8:42am UTC](https://forums.unrealengine.com/t/keep-simulation-changes-does-not-work-with-fracture-assets/489748 "2021-10-11T08:42:38Z")
Hi, I’ve added fracture using fracture editing mode to some assets but after I play simulation, selected keep the changes option, but everything goes back to it’s initial position after I hit stop simulation. I would li… --- ## [During the simulation, the object is suddenly deleted.](https://forums.unrealengine.com/t/during-the-simulation-the-object-is-suddenly-deleted/489157)
**Author:** [@thdwndus](https://forums.unrealengine.com/u/thdwndus)\ **Replies:** 1\ **Last updated:** [September 25, 2021, 8:38am UTC](https://forums.unrealengine.com/t/during-the-simulation-the-object-is-suddenly-deleted/489157 "2021-09-25T08:38:59Z")
I’m using ue4.27. I created C++ project with Third person templet. I Created Chair object in 3dmax. imported my modeling files into unreal engine. I turned on ‘Simulate Physics’ in detail tab. started PIE. … --- ## [Quest 2 not displaying vr games when simulating](https://forums.unrealengine.com/t/quest-2-not-displaying-vr-games-when-simulating/486352)
**Author:** [@Levenlol](https://forums.unrealengine.com/u/Levenlol)\ **Replies:** 1\ **Last updated:** [July 27, 2021, 4:27am UTC](https://forums.unrealengine.com/t/quest-2-not-displaying-vr-games-when-simulating/486352 "2021-07-27T04:27:24Z")
Hi I’m trying to use my Oculus quest 2 as headset to develop a PCVR game. I connect my quest 2 and my pc with a usb link. When I click on Simulate VR it loads up Steam VR and on the PC screen i see the game up and run… --- ## [Groom hair physics works in the editor view but not through a camera view](https://forums.unrealengine.com/t/groom-hair-physics-works-in-the-editor-view-but-not-through-a-camera-view/485551)
**Author:** [@Adorben](https://forums.unrealengine.com/u/Adorben)\ **Replies:** 0\ **Last updated:** [June 30, 2021, 2:52am UTC](https://forums.unrealengine.com/t/groom-hair-physics-works-in-the-editor-view-but-not-through-a-camera-view/485551 "2021-06-30T02:52:28Z")
Hi everyone! I’m having a problem with Unreals “groom” and after debugging and googling a ton, I have no fix. I was hoping maybe someone here could help me out. I have a “groom” hair working great on my model… however t… --- ## [Blender 2.9 Alembic simulation to ue4?](https://forums.unrealengine.com/t/blender-2-9-alembic-simulation-to-ue4/483516)
**Author:** [@unrealredist](https://forums.unrealengine.com/u/unrealredist)\ **Replies:** 0\ **Last updated:** [May 17, 2021, 3:58pm UTC](https://forums.unrealengine.com/t/blender-2-9-alembic-simulation-to-ue4/483516 "2021-05-17T15:58:40Z")
How to export blender 2.9 alembic sim to ue4? I followed this tut Cinematic Sci fi blast However the smoke domain was “just” there and now it looks like a expanding cube ): Can anyone help??? it was not like that in thi… --- ## [How to make physics object move With moving surface?](https://forums.unrealengine.com/t/how-to-make-physics-object-move-with-moving-surface/470440)
**Author:** [@AttemptD](https://forums.unrealengine.com/u/AttemptD)\ **Replies:** 5\ **Last updated:** [September 1, 2020, 7:50am UTC](https://forums.unrealengine.com/t/how-to-make-physics-object-move-with-moving-surface/470440 "2020-09-01T07:50:56Z")
Ok the question may sound odd but I couldn’t figure out how else to word it. I have a ball I push around with the player to solve puzzles. It has physics simulated to achieve realistic style rolling. I need said ball t… --- ## [How to use physics with locomotion asset?](https://forums.unrealengine.com/t/how-to-use-physics-with-locomotion-asset/467601)
**Author:** [@FriendlySeal](https://forums.unrealengine.com/u/FriendlySeal)\ **Replies:** 0\ **Last updated:** [July 3, 2020, 2:04pm UTC](https://forums.unrealengine.com/t/how-to-use-physics-with-locomotion-asset/467601 "2020-07-03T14:04:00Z")
how do i have simple soft body collisions using advanced locomotion v4? i just want to simulate hair and skirt on my character --- ## [Behavior Tree AI and Simulating Physics](https://forums.unrealengine.com/t/behavior-tree-ai-and-simulating-physics/466504)
**Author:** [@Experial83](https://forums.unrealengine.com/u/Experial83)\ **Replies:** 0\ **Last updated:** [June 10, 2020, 1:24am UTC](https://forums.unrealengine.com/t/behavior-tree-ai-and-simulating-physics/466504 "2020-06-10T01:24:49Z")
Hey everyone! I’m super stuck here and I’d love your insight on this. I have an AI Behaviour Tree running some simple MoveTo commands that are moving my pawn around the map. I’ve discovered that it only works if Simulat… --- ## [Clothing Clipping on Simulation](https://forums.unrealengine.com/t/clothing-clipping-on-simulation/464614)
**Author:** [@anonymous\_user\_d3a4e6361](https://forums.unrealengine.com/u/anonymous_user_d3a4e6361)\ **Replies:** 1\ **Last updated:** [May 5, 2020, 10:55pm UTC](https://forums.unrealengine.com/t/clothing-clipping-on-simulation/464614 "2020-05-05T22:55:16Z")
Hi! I’m trying to create some clothing for my characters using a master pose and a child skeletal mesh. In the Viewport for the character blueprint the clothing looks perfect, however, every time I click “Simulation” or … --- ## [Grab collision problem](https://forums.unrealengine.com/t/grab-collision-problem/461572)
**Author:** [@anonymous\_user\_d66a3631](https://forums.unrealengine.com/u/anonymous_user_d66a3631)\ **Replies:** 0\ **Last updated:** [February 10, 2020, 11:26am UTC](https://forums.unrealengine.com/t/grab-collision-problem/461572 "2020-02-10T11:26:28Z")
Hi Guys, How can i reduce force between the simulating object in unreal. --- ## [Object doesn't reappear](https://forums.unrealengine.com/t/object-doesnt-reappear/461514)
**Author:** [@LoganDolan](https://forums.unrealengine.com/u/LoganDolan)\ **Replies:** 2\ **Last updated:** [February 9, 2020, 5:55pm UTC](https://forums.unrealengine.com/t/object-doesnt-reappear/461514 "2020-02-09T17:55:21Z")
I’ve set up an inventory system that hides the actor and disables all of its collisions when its picked up by the player. But whenever the player wants to drop the object, the object is placed in front of the player, re… --- ## [Destructible meshes fall asleep while held with physics handle](https://forums.unrealengine.com/t/destructible-meshes-fall-asleep-while-held-with-physics-handle/400056)
**Author:** [@anonymous\_user\_f251bfd11](https://forums.unrealengine.com/u/anonymous_user_f251bfd11)\ **Replies:** 1\ **Last updated:** [October 25, 2019, 12:26pm UTC](https://forums.unrealengine.com/t/destructible-meshes-fall-asleep-while-held-with-physics-handle/400056 "2019-10-25T12:26:02Z")
Title says it all. I can pick up chunks, destructibles and any physics simulating object. it works just the way I want it except for the fact that the object I am holding (if it is a destructible only apparently) sometim… --- ## [Using Cloth simulation on a bone scaled character](https://forums.unrealengine.com/t/using-cloth-simulation-on-a-bone-scaled-character/455862)
**Author:** [@refia](https://forums.unrealengine.com/u/refia)\ **Replies:** 0\ **Last updated:** [September 24, 2019, 1:24am UTC](https://forums.unrealengine.com/t/using-cloth-simulation-on-a-bone-scaled-character/455862 "2019-09-24T01:24:27Z")
Hi, Frd. Thx for your interest of my question. I’m going to use NVCloth for the various characters created through this scale. Is there any way to affect the scale value in the Physics Body when Bone Scale is done thro… --- ## [Main Menu animated background problems](https://forums.unrealengine.com/t/main-menu-animated-background-problems/441008)
**Author:** [@Asdene](https://forums.unrealengine.com/u/Asdene)\ **Replies:** 1\ **Last updated:** [June 19, 2019, 10:43am UTC](https://forums.unrealengine.com/t/main-menu-animated-background-problems/441008 "2019-06-19T10:43:49Z")
I have posted this on the regular UE4 fourms but I found this Answerhub a bit late. I want to make my menu background animated. I got the preview working properly in the sense that the media player plays the background w… --- ## [Cloth Simulation, Clothes don't move](https://forums.unrealengine.com/t/cloth-simulation-clothes-dont-move/441722)
**Author:** [@HoodedSamuraii](https://forums.unrealengine.com/u/HoodedSamuraii)\ **Replies:** 2\ **Last updated:** [May 23, 2019, 4:59pm UTC](https://forums.unrealengine.com/t/cloth-simulation-clothes-dont-move/441722 "2019-05-23T16:59:35Z")
Hey, Currently using UE 4.2 and I’m running into some issues with the Cloth simulator. After I paint an object I want to move and disable the Cloth Paint tool the object doesn’t move at all. I’ve added wind to the projec… --- ## [Not simulating/Teleporting/Floating particles with Apex Destruction](https://forums.unrealengine.com/t/not-simulating-teleporting-floating-particles-with-apex-destruction/445251)
**Author:** [@anonymous\_user\_abad6f831](https://forums.unrealengine.com/u/anonymous_user_abad6f831)\ **Replies:** 18\ **Last updated:** [March 17, 2019, 5:50pm UTC](https://forums.unrealengine.com/t/not-simulating-teleporting-floating-particles-with-apex-destruction/445251 "2019-03-17T17:50:52Z")
Tinkered with settings, physics, searched for this issue posted elsewhere but no luck. The issue is that when I hit a destructible mesh with a projectile (impact causes destruction) I get a couple of floating pieces whic… --- ## [SetSimulatePhysics on skeletal mesh gives an error and 5 seconds hang, but works](https://forums.unrealengine.com/t/setsimulatephysics-on-skeletal-mesh-gives-an-error-and-5-seconds-hang-but-works/439641)
**Author:** [@ATHIEK](https://forums.unrealengine.com/u/ATHIEK)\ **Replies:** 1\ **Last updated:** [December 18, 2018, 11:22am UTC](https://forums.unrealengine.com/t/setsimulatephysics-on-skeletal-mesh-gives-an-error-and-5-seconds-hang-but-works/439641 "2018-12-18T11:22:36Z")
So whenever i try SetSimulatePhysics(true) it will hangs for like five seconds and give the error : LogOutputDevice: Error: Ensure condition failed: !bRegistered || GetAttachParent()-\>GetAttachChildren().Contains(thi… --- ## [Cloth not too accurate](https://forums.unrealengine.com/t/cloth-not-too-accurate/431923)
**Author:** [@Andres\_H\_RG](https://forums.unrealengine.com/u/Andres_H_RG)\ **Replies:** 1\ **Last updated:** [September 2, 2018, 12:14pm UTC](https://forums.unrealengine.com/t/cloth-not-too-accurate/431923 "2018-09-02T12:14:17Z")
Hi! I tried to make a flag, but when it simulates cloth it just stops instead of falling all the way. Anyone knows what the problem is? --- ## [Use Complex Collision as Simple wont simulate rigid body physics](https://forums.unrealengine.com/t/use-complex-collision-as-simple-wont-simulate-rigid-body-physics/410693)
**Author:** [@True\_Origins\_Int](https://forums.unrealengine.com/u/True_Origins_Int)\ **Replies:** 1\ **Last updated:** [August 9, 2018, 1:31pm UTC](https://forums.unrealengine.com/t/use-complex-collision-as-simple-wont-simulate-rigid-body-physics/410693 "2018-08-09T13:31:42Z")
So I changed my objects collision complexity to “Use complex collision as simple” (per poly collision), and it WONT simulate physics, is there any way in which i can use per poly collision and use physics rigid body simu… --- ## [Ragdolls freezing when enabling physics](https://forums.unrealengine.com/t/ragdolls-freezing-when-enabling-physics/426057)
**Author:** [@HiIAmMoot](https://forums.unrealengine.com/u/HiIAmMoot)\ **Replies:** 1\ **Last updated:** [May 29, 2018, 5:31pm UTC](https://forums.unrealengine.com/t/ragdolls-freezing-when-enabling-physics/426057 "2018-05-29T17:31:47Z")
Issue started with 4.19. I don’t know why this is happening in my character, all the skeletal mesh does is reset the animation and start simulating physics (for all bodies). This didn’t happen with previous UE versions. … --- ## [AI Collision Simulation Character Bounces on Ground](https://forums.unrealengine.com/t/ai-collision-simulation-character-bounces-on-ground/421012)
**Author:** [@lafilmcompany](https://forums.unrealengine.com/u/lafilmcompany)\ **Replies:** 0\ **Last updated:** [March 27, 2018, 12:24pm UTC](https://forums.unrealengine.com/t/ai-collision-simulation-character-bounces-on-ground/421012 "2018-03-27T12:24:39Z")
I am having an issue with my AI physics. When I Simulate AI Physics it bounces all over the place instead of falling to the ground. I attaches a video. How do i fix this problem? link text --- ## [Having issues importing cloth simulation into UE4](https://forums.unrealengine.com/t/having-issues-importing-cloth-simulation-into-ue4/419088)
**Author:** [@Elemental-Labs](https://forums.unrealengine.com/u/Elemental-Labs)\ **Replies:** 2\ **Last updated:** [March 6, 2018, 9:52pm UTC](https://forums.unrealengine.com/t/having-issues-importing-cloth-simulation-into-ue4/419088 "2018-03-06T21:52:22Z")
Character’s mesh and animation are exported out from UE4 and cloth simulations are (alembic) cached out from Maya 2017. Upon exporting from Maya, which behaves naturally according to the movements of the character anima… --- ## [Possess the character from the beginning when simulating?](https://forums.unrealengine.com/t/possess-the-character-from-the-beginning-when-simulating/415425)
**Author:** [@anonymous\_user\_381f5d861](https://forums.unrealengine.com/u/anonymous_user_381f5d861)\ **Replies:** 3\ **Last updated:** [January 25, 2018, 5:50pm UTC](https://forums.unrealengine.com/t/possess-the-character-from-the-beginning-when-simulating/415425 "2018-01-25T17:50:21Z")
I have some levels with multiple different AI setups, where one AI is not working. Upon trying to debug, I noticed that no AI works in simulation mode, the BTs and services and such won’t display any flow paths, openng t… --- ## [Strange Vertex (at least seamingly) drag when rotating around character](https://forums.unrealengine.com/t/strange-vertex-at-least-seamingly-drag-when-rotating-around-character/408891)
**Author:** [@RaiNBuddha](https://forums.unrealengine.com/u/RaiNBuddha)\ **Replies:** 1\ **Last updated:** [November 14, 2017, 5:14pm UTC](https://forums.unrealengine.com/t/strange-vertex-at-least-seamingly-drag-when-rotating-around-character/408891 "2017-11-14T17:14:57Z")
I’m new to Game Development and I just imported my character and set up some very basic camera controls. When I rotate around my character there is a strange drag as if the vertices of the 3D model were lagging behind. I… --- ## [Attach Destructible Problem](https://forums.unrealengine.com/t/attach-destructible-problem/409413)
**Author:** [@davidgutjar](https://forums.unrealengine.com/u/davidgutjar)\ **Replies:** 0\ **Last updated:** [November 12, 2017, 3:26pm UTC](https://forums.unrealengine.com/t/attach-destructible-problem/409413 "2017-11-12T15:26:41Z")
Hey Im create destructible mesh glass \* car window and connect with constraints itdoesnt move with vehicle (simulate physics on) any idea how connect destructible to mesh ? thx [Next page](https://forums.unrealengine.com/tag/not-simulating/10311.md?match_all_tags=true&page=1&tags%5B%5D=not-simulating)