# \#APEX

**URL:** https://forums.unrealengine.com/tag/apex/104.md

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## [APEX Destructible Mesh problems ](https://forums.unrealengine.com/t/apex-destructible-mesh-problems/2698374)

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**Author:** [@lil\_wool69](https://forums.unrealengine.com/u/lil_wool69)\
**Replies:** 1\
**Last updated:** [February 9, 2026, 4:42pm UTC](https://forums.unrealengine.com/t/apex-destructible-mesh-problems/2698374 "2026-02-09T16:42:57Z")

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Hi Guys, I’m trying to package my ue4.27.2 project but i keep getting error messages about apex destruction mesh and i have no idea how to fix it. PackagingResults: Error: PHYSX: (D:\\Build++Fortnite\\Sync\\Engine\\Source\\T…

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## [Extreme stretching when cloth applied](https://forums.unrealengine.com/t/extreme-stretching-when-cloth-applied/1763597)

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**Author:** [@OssifiedGames](https://forums.unrealengine.com/u/OssifiedGames)\
**Replies:** 1\
**Last updated:** [November 13, 2025, 3:04am UTC](https://forums.unrealengine.com/t/extreme-stretching-when-cloth-applied/1763597 "2025-11-13T03:04:02Z")

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Hi everyone, i have a real annoying problem, when i paint cloth information on my mesh and then i apply the info at the mesh, the mesh stretches deep far the point of interest, seeminlgy attracted by other polygons ( i s…

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## [r.SkinCache.CompileShaders=True in DefaultEngine.ini breaks Apex Destructio](https://forums.unrealengine.com/t/r-skincache-compileshaders-true-in-defaultengine-ini-breaks-apex-destructio/2659367)

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**Author:** [@Zarrar2802](https://forums.unrealengine.com/u/Zarrar2802)\
**Replies:** 1\
**Last updated:** [September 24, 2025, 5:06pm UTC](https://forums.unrealengine.com/t/r-skincache-compileshaders-true-in-defaultengine-ini-breaks-apex-destructio/2659367 "2025-09-24T17:06:29Z")

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In the video, using UE 4.26, I first import a static mesh and its chunks into an empty project. The Destructible Mesh Editor works fine, I can switch between Preview Depths and I can move the explode amoun…

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## [Apex Destruction mesh going to sleep too soon](https://forums.unrealengine.com/t/apex-destruction-mesh-going-to-sleep-too-soon/2628086)

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**Author:** [@Zarrar2802](https://forums.unrealengine.com/u/Zarrar2802)\
**Replies:** 0\
**Last updated:** [August 3, 2025, 4:39am UTC](https://forums.unrealengine.com/t/apex-destruction-mesh-going-to-sleep-too-soon/2628086 "2025-08-03T04:39:57Z")

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Notice how the wooden planks start hovering in mid air after they become stationary. The mesh is inside a vehicle BP. The following are the destructible’s settings: Is there a way to increase the time before …

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## [Chaos Destructible mesh only fragments on the first hit - UE5](https://forums.unrealengine.com/t/chaos-destructible-mesh-only-fragments-on-the-first-hit-ue5/2215440)

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**Author:** [@TheSubZer0](https://forums.unrealengine.com/u/TheSubZer0)\
**Replies:** 3\
**Last updated:** [May 8, 2025, 4:16am UTC](https://forums.unrealengine.com/t/chaos-destructible-mesh-only-fragments-on-the-first-hit-ue5/2215440 "2025-05-08T04:16:35Z")

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I’m using Unreal Engine 5.4’s Chaos, I’ve tested all the geometry collection parameters to allow an unlimited number of times to fracture. When I fire the first projectile it breaks the destructible wall, but when I fire…

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## [How to disable/enable skeletal mesh cloth simulation with level blueprint](https://forums.unrealengine.com/t/how-to-disable-enable-skeletal-mesh-cloth-simulation-with-level-blueprint/383095)

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**Author:** [@I\_Create\_Art](https://forums.unrealengine.com/u/I_Create_Art)\
**Replies:** 4\
**Last updated:** [September 1, 2024, 8:10pm UTC](https://forums.unrealengine.com/t/how-to-disable-enable-skeletal-mesh-cloth-simulation-with-level-blueprint/383095 "2024-09-01T20:10:48Z")

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I can disable cloth simulation in the with properties dialogue of a skeletal mesh but I want to disable and enable cloth simulations via level blueprint when specific events occur. Is there anyway to do it with blueprint…

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## [Cloth not falling all the way (Invisible collision?)](https://forums.unrealengine.com/t/cloth-not-falling-all-the-way-invisible-collision/432884)

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**Author:** [@mrblimack](https://forums.unrealengine.com/u/mrblimack)\
**Replies:** 15\
**Last updated:** [July 28, 2024, 1:08pm UTC](https://forums.unrealengine.com/t/cloth-not-falling-all-the-way-invisible-collision/432884 "2024-07-28T13:08:30Z")

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Hi, I’m trying to do basic Cloth Simulation (a plane with no collisions that I can place on moving object in the world). What I did: 1-Create an horizontal Plane in 3ds Max 2-Import it in Ue4 creating new skeletal me…

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## [APEX internal material not working](https://forums.unrealengine.com/t/apex-internal-material-not-working/490944)

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**Author:** [@anonymous\_user\_23c72c9a1](https://forums.unrealengine.com/u/anonymous_user_23c72c9a1)\
**Replies:** 1\
**Last updated:** [February 19, 2024, 4:07pm UTC](https://forums.unrealengine.com/t/apex-internal-material-not-working/490944 "2024-02-19T16:07:00Z")

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Im trying to make some simple distructable meshes. But I can’t change the internal material of the object. I have tried adding aditional material slots and overiding materials in the Destruction editor but when its spawe…

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## [Migrating from ApexDestruction to Chaos](https://forums.unrealengine.com/t/migrating-from-apexdestruction-to-chaos/1698412)

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**Author:** [@Katianie](https://forums.unrealengine.com/u/Katianie)\
**Replies:** 3\
**Last updated:** [February 19, 2024, 8:25am UTC](https://forums.unrealengine.com/t/migrating-from-apexdestruction-to-chaos/1698412 "2024-02-19T08:25:25Z")

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I’m working on migrating my game from Unreal Engine 4 (4.27) to Unreal Engine 5 (5.0.3). As you know, ApexDestruction has been deprecated/removed for UE5. I’m trying to remove ApexDestruction related things and replace t…

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## [Chaos clusters importing as meshes?](https://forums.unrealengine.com/t/chaos-clusters-importing-as-meshes/487629)

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**Author:** [@Killerzwerg](https://forums.unrealengine.com/u/Killerzwerg)\
**Replies:** 1\
**Last updated:** [May 1, 2022, 8:33am UTC](https://forums.unrealengine.com/t/chaos-clusters-importing-as-meshes/487629 "2022-05-01T08:33:54Z")

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Hey people, I need to change my whole project to CHAOS destruction, because APEX destruction isn´t working in ue5 (PhysX is unavailable)… I have added a lot of Destructible meshes in my project, which are using APEX de…

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## [Apex Debris timeout glitch or rong settings](https://forums.unrealengine.com/t/apex-debris-timeout-glitch-or-rong-settings/491122)

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**Author:** [@Napimel](https://forums.unrealengine.com/u/Napimel)\
**Replies:** 0\
**Last updated:** [November 20, 2021, 3:12am UTC](https://forums.unrealengine.com/t/apex-debris-timeout-glitch-or-rong-settings/491122 "2021-11-20T03:12:45Z")

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link text As show in video chunks seems to be removed but the “mesh” remains glitching based on camera angle.

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## [Unfractured Destructible Meshes are too heavy on GPU](https://forums.unrealengine.com/t/unfractured-destructible-meshes-are-too-heavy-on-gpu/361289)

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**Author:** [@anonymous\_user\_450e4da0](https://forums.unrealengine.com/u/anonymous_user_450e4da0)\
**Replies:** 12\
**Last updated:** [November 16, 2021, 10:30am UTC](https://forums.unrealengine.com/t/unfractured-destructible-meshes-are-too-heavy-on-gpu/361289 "2021-11-16T10:30:52Z")

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Hi, it appears that UNfractured Meshes render their fractured state even if it is visualized differently by the engine. To test this you can slice a simple Mesh one time into 100 Pices in depth 2 (actually depth doesnt…

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## [\[BUG\] APEX clothing & skel mesh with morph target](https://forums.unrealengine.com/t/bug-apex-clothing-skel-mesh-with-morph-target/276723)

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**Author:** [@ue4-archive](https://forums.unrealengine.com/u/ue4-archive)\
**Replies:** 2\
**Last updated:** [October 21, 2021, 9:14pm UTC](https://forums.unrealengine.com/t/bug-apex-clothing-skel-mesh-with-morph-target/276723 "2021-10-21T21:14:49Z")

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I noticed that as soon as a skeletal mesh triggers morph targets, the APEX clothing gets messed up.

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## [Apex Destructible doesn't work in package](https://forums.unrealengine.com/t/apex-destructible-doesnt-work-in-package/439226)

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**Author:** [@anonymous\_user\_5b4c0596](https://forums.unrealengine.com/u/anonymous_user_5b4c0596)\
**Replies:** 14\
**Last updated:** [July 7, 2021, 10:00pm UTC](https://forums.unrealengine.com/t/apex-destructible-doesnt-work-in-package/439226 "2021-07-07T22:00:20Z")

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Hi. I faced with very strange and specific issue. I have an c++ actor with destructible component. I loaded destrictible mesh asset using FContructionHelpers, and spawn this actor in c++ UObject. Everything goes fine wh…

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## [Character Mesh cause APEX destruction to buildings](https://forums.unrealengine.com/t/character-mesh-cause-apex-destruction-to-buildings/483074)

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**Author:** [@hoodTRONIK](https://forums.unrealengine.com/u/hoodTRONIK)\
**Replies:** 0\
**Last updated:** [May 7, 2021, 8:08pm UTC](https://forums.unrealengine.com/t/character-mesh-cause-apex-destruction-to-buildings/483074 "2021-05-07T20:08:29Z")

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I was wondering the easiest way to make an animated character be able to cause destruction to a static mesh using the old APEX plug-in. Thanks

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## [Anyone know a BP for spawning a destructible mesh in place of a skeletal mesh?](https://forums.unrealengine.com/t/anyone-know-a-bp-for-spawning-a-destructible-mesh-in-place-of-a-skeletal-mesh/481868)

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**Author:** [@sunsetnyc](https://forums.unrealengine.com/u/sunsetnyc)\
**Replies:** 0\
**Last updated:** [April 13, 2021, 9:11pm UTC](https://forums.unrealengine.com/t/anyone-know-a-bp-for-spawning-a-destructible-mesh-in-place-of-a-skeletal-mesh/481868 "2021-04-13T21:11:41Z")

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Hi, I am trying to have a skeletal mesh that I turned into a cloth turn into a destructible version of itself. Ie The cloth is waving in the wind and then breaks apart. Anyone have any idea how to do this? I am able to …

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## [Applying cloth data to section, breaks mesh normals. (Works fine in another project.)](https://forums.unrealengine.com/t/applying-cloth-data-to-section-breaks-mesh-normals-works-fine-in-another-project/477587)

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**Author:** [@tomrader](https://forums.unrealengine.com/u/tomrader)\
**Replies:** 0\
**Last updated:** [January 21, 2021, 4:05pm UTC](https://forums.unrealengine.com/t/applying-cloth-data-to-section-breaks-mesh-normals-works-fine-in-another-project/477587 "2021-01-21T16:05:09Z")

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Hello, I have been working cloth simulations for the past week. It was all going fine, until I removed the parts in the mesh which were hidden by the cloth. After that no matter what I do normals were always broken. And …

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## [Multiple Materials on Apex Destructible Mesh?](https://forums.unrealengine.com/t/multiple-materials-on-apex-destructible-mesh/279684)

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**Author:** [@Apoc\_2](https://forums.unrealengine.com/u/Apoc_2)\
**Replies:** 6\
**Last updated:** [January 14, 2021, 7:22pm UTC](https://forums.unrealengine.com/t/multiple-materials-on-apex-destructible-mesh/279684 "2021-01-14T19:22:33Z")

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In Physx Lab I have two materials applied to destructible mesh, but when I export asset and import into UE4 it only has one material slot. Is it possible to import an Apex Destructible Mesh from Physx Lab with multiple …

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## [Chaos or Apex Destruction? Which Version?](https://forums.unrealengine.com/t/chaos-or-apex-destruction-which-version/460475)

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**Author:** [@FunAndFriendly](https://forums.unrealengine.com/u/FunAndFriendly)\
**Replies:** 1\
**Last updated:** [December 4, 2020, 12:22am UTC](https://forums.unrealengine.com/t/chaos-or-apex-destruction-which-version/460475 "2020-12-04T00:22:31Z")

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Hi there, I’d like to make a game with some explosions and destruction. I tried the Chaos destruction plugin in a source build for 4.23, but after 8 hours of messing with it, the destruction demo refused to compile and …

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## [Apex Destruction: How to 'smooth' remove chunks](https://forums.unrealengine.com/t/apex-destruction-how-to-smooth-remove-chunks/474463)

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**Author:** [@Nefaru](https://forums.unrealengine.com/u/Nefaru)\
**Replies:** 0\
**Last updated:** [November 15, 2020, 12:33am UTC](https://forums.unrealengine.com/t/apex-destruction-how-to-smooth-remove-chunks/474463 "2020-11-15T00:33:46Z")

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I have 2 questions with the Apex Destruction plugin: First, is there a good way to destroy/remove the chunks from the scene. So now they are just instantly disappearing after some seconds. I would love to fade them out …

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## [Destructible mesh not using second material](https://forums.unrealengine.com/t/destructible-mesh-not-using-second-material/473531)

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**Author:** [@w2lf](https://forums.unrealengine.com/u/w2lf)\
**Replies:** 3\
**Last updated:** [November 12, 2020, 1:53pm UTC](https://forums.unrealengine.com/t/destructible-mesh-not-using-second-material/473531 "2020-11-12T13:53:04Z")

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Looks like its not working on 4.24. Anyway to fix this? I am also using APEX plugin.

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## [How to set max chunk count in destructible mesh?](https://forums.unrealengine.com/t/how-to-set-max-chunk-count-in-destructible-mesh/467614)

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**Author:** [@z1kot](https://forums.unrealengine.com/u/z1kot)\
**Replies:** 0\
**Last updated:** [July 3, 2020, 6:43pm UTC](https://forums.unrealengine.com/t/how-to-set-max-chunk-count-in-destructible-mesh/467614 "2020-07-03T18:43:28Z")

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I know UDK allows to set max chunk count(ApexDestructionMaxChunkIslandCount, ApexDestructionMaxShapeCount), which have removed unnecessary chunks(for example ApexDestructionMaxChunkIslandCount=400, ApexDestructionMaxShap…

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## [Failed to build ApexDestruction plugin. Please help!](https://forums.unrealengine.com/t/failed-to-build-apexdestruction-plugin-please-help/466372)

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**Author:** [@ThiloN1987](https://forums.unrealengine.com/u/ThiloN1987)\
**Replies:** 1\
**Last updated:** [June 7, 2020, 6:34pm UTC](https://forums.unrealengine.com/t/failed-to-build-apexdestruction-plugin-please-help/466372 "2020-06-07T18:34:56Z")

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Hello, I copied the ApexDestruction folder to my Project/Plugins folder and made a small code change. Then I tried to build the project (Development-x64) but it can’t find “PhysXLibraryMode” (“are you missing an assembl…

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## [Cant modify Notify Apex bool](https://forums.unrealengine.com/t/cant-modify-notify-apex-bool/461419)

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**Author:** [@Frenchstery](https://forums.unrealengine.com/u/Frenchstery)\
**Replies:** 3\
**Last updated:** [February 7, 2020, 4:45pm UTC](https://forums.unrealengine.com/t/cant-modify-notify-apex-bool/461419 "2020-02-07T16:45:33Z")

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I am trying to set an event that is triggered when the apex of a jump is reached, I have the OnReachedJumpApex set up to do this. Unreal documentation is saying I need to enable Notify Apex for this to work, I can’t do …

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## [Is Nvidia APEX Cloth still needed?](https://forums.unrealengine.com/t/is-nvidia-apex-cloth-still-needed/461051)

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**Author:** [@LinkRealities](https://forums.unrealengine.com/u/LinkRealities)\
**Replies:** 0\
**Last updated:** [January 29, 2020, 9:39am UTC](https://forums.unrealengine.com/t/is-nvidia-apex-cloth-still-needed/461051 "2020-01-29T09:39:40Z")

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I currently have a problem with the cloth tool of the Unreal Engine. When I set up a Cloth Asset, for example a coat, with buttons hanging on it, then the buttons are calculated differently, even though they have the sam…

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## [\[Cloth Physics\] Cape is lying down on something, weird!](https://forums.unrealengine.com/t/cloth-physics-cape-is-lying-down-on-something-weird/459718)

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**Author:** [@Filly\_The\_Owl](https://forums.unrealengine.com/u/Filly_The_Owl)\
**Replies:** 9\
**Last updated:** [December 31, 2019, 6:12pm UTC](https://forums.unrealengine.com/t/cloth-physics-cape-is-lying-down-on-something-weird/459718 "2019-12-31T18:12:58Z")

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Hello friends! I have a weird issue with my cloth cape… I followed a tutorial that neatly showed how todo this but then my cape does this weird thing. It looks like its lying on something… I played with all the cape s…

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## [Apex Destruction plugin always loads the same mesh with 4.24](https://forums.unrealengine.com/t/apex-destruction-plugin-always-loads-the-same-mesh-with-4-24/459939)

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**Author:** [@BaronS\_88](https://forums.unrealengine.com/u/BaronS_88)\
**Replies:** 1\
**Last updated:** [December 30, 2019, 3:52pm UTC](https://forums.unrealengine.com/t/apex-destruction-plugin-always-loads-the-same-mesh-with-4-24/459939 "2019-12-30T15:52:22Z")

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I already tried to delete the plugin folder and let the launcher install it again, but this didn’t fixed. I just can’t understand why the plugin always load a mesh I already used days ago… It seems I won’t be able to f…

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## [Exlude APEX and PhysX libraries](https://forums.unrealengine.com/t/exlude-apex-and-physx-libraries/456118)

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**Author:** [@Zaratusa](https://forums.unrealengine.com/u/Zaratusa)\
**Replies:** 0\
**Last updated:** [September 27, 2019, 9:18pm UTC](https://forums.unrealengine.com/t/exlude-apex-and-physx-libraries/456118 "2019-09-27T21:18:30Z")

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I’m currently adding Linux support to my game and I was wondering why the linux build is much larger than my windows build. Then I came upon the third party libraries: PhysX3 libraries where added, including APEX librari…

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## [Clothing Rest State?](https://forums.unrealengine.com/t/clothing-rest-state/451229)

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**Author:** [@MacDonald82](https://forums.unrealengine.com/u/MacDonald82)\
**Replies:** 0\
**Last updated:** [June 25, 2019, 10:43am UTC](https://forums.unrealengine.com/t/clothing-rest-state/451229 "2019-06-25T10:43:37Z")

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Hi guys, I have a question regarding clothing/cloth simulation in UE 4.22. I would like to know if there is a way to set the cloth simulation to have a specific rest state or even a state it conforms back to after simu…

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## [Apex Cloth : Keep mesh's form](https://forums.unrealengine.com/t/apex-cloth-keep-meshs-form/361987)

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**Author:** [@Gdojjo](https://forums.unrealengine.com/u/Gdojjo)\
**Replies:** 4\
**Last updated:** [June 7, 2019, 6:42pm UTC](https://forums.unrealengine.com/t/apex-cloth-keep-meshs-form/361987 "2019-06-07T18:42:53Z")

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Hello guys^^ I have a problem with Apex :confused: I can make skirt,Cape,straight hair,etc. with apex but today im trying new hair like spiral shape but apex deformed my hair’s shape.How can i keep my hair’s shape/form …

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