Unreal Engine Issues
Unreal Engine Issues
ChaosCacheManager is not recording the Observed GeometryCollections NotifyBreak states between level loading and will default to false if changed from Record to Play
UE - Simulation - Physics - Mar 28, 2025ChaosCacheManager (CCM) is not recording the Observed GeometryCollections (GC) NotifyBreak states between level loading and will default to false if changed from Record to Play. AChaosCacheManager ...
Particle AnimTrails do not render on Android with Mali chipset when using OpenGL ES 3.1
UE - Platform - Mobile - Nov 22, 2016Particle AnimTrails are not rendering on Mali but will render on the Adreno when using the OpenGL ES 3.1. ES2 renders correctly on both devices, just ES 3.1 does not. The devices compared: Working ...
Setting Physics Blend Weight to anything between 0 and 1 causes erratic behavior
UE - Simulation - Physics - Jul 27, 2015If the user simulates all bodies, and then sets the physics blend weight to a decimal value between 0 and 1, the skeletal meshes will spin out of control. This doesn't happen if the physics blend w ...
FBX sdk give wrong normals when compile with Visual Studio 17.4.1
UE - Editor - Content Pipeline - Import and Export - Nov 24, 2022At the time this Jira is created, UE 5.1 and 5.2 is using VS 17.3.6 which is working correctly. any update after should repro the issue. ...
Material expression If node has been broken, major regression that shipped in 4.6
UE - Graphics Features - Dec 9, 2014This sounds legit. Anyone mess with the if node recently? There seems to be a regression where existing content is broken. This should be fixed ASAP and patched into 4.6. https://forums.unrealen ...
Brush Clip Affects Surrounding Geometry Beyond the Geometry It Is Applied To
UE - LD & Modeling - Modeling Tools - BSP - Dec 2, 2016Brush Clip affects the surrounding geometry beyond the geometry it is applied to. (*See attached image for clarification) Regression: No ...
TMaps with instanced objects: modifying instanced object data in child affects parent
UE - Gameplay - Blueprint - Jul 25, 2023Given a TMap where the value type is an instanced object: when a child blueprint is saved with modifications to the TMap, and then additional TMap are added to the parent blueprint and the child blu ...
Crash when applying Radial force to a BSP when Radial force is set to affect World static
UE - Simulation - Physics - Apr 10, 2019If a radial force component applies force to a BSP the editor will crash. The radial force will need to be set to affect world static objects. ...
Upgrading to from 4.6 to 4.7 can cause assets to not be fully loaded in
UE - Gameplay - Blueprint - Mar 8, 2015A user has upgraded their project from 4.6.1 to 4.7.2 and now one of their assets is partially loaded. After a bit of digging I found an error in the event graph of the ShadowHerosHUD. The nodes are ...
Depth Fade Material + Mobile HDR Disabled does not work with OpenGL 3.1 on Oculus Go
UE - Platform - Mobile - Dec 28, 2018"Depth Fade" material node does not work on Oculus Go with Open GL 3.1 active and Mobile HDR disabled. Seems very similar to [Link Removed] however disabling Separate Translucency or calling r.M ...