Unreal Engine Issues
Unreal Engine Issues
Correct Morph Targets animate in PIE, but not in Standalone Game
OLD - Anim - Mar 5, 2015Wrong morph targets are animating in standalone game, but the right ones play in PIE See the Additional Info URL for the user's description (and youtube video) Here is the project: [Link Removed] ...
EOS Voice plugin causes a crash after adding "DefaultPlatformService=EOS" to the DefaultEngine.ini then restarting the editor
UE - Online - Jan 10, 2022This is not a regression. Doesn't affect UE5. The editor crashes on start up after enabling EOS Voice Chat, and updating the .ini to include DefaultPlatformService=EOS. Removing DefaultPlatformServ ...
Collision between physicalized actors and instanced static meshes produce warnings.
UE - Simulation - Physics - Sep 25, 2023Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...
Montage Section Links Don't Update When Section Deleted
UE - Anim - Gameplay - Mar 21, 2025Hi there, I noticed that there is a problem with Montage Section links not updating when a section is deleted from a montage asset. We had a montage with a "Default" section and a "Loop" section. ...
Scaling snap for selected object are reset to the origin of the scale pivot location
Tools - Apr 27, 2016When scaling multiple selected actors in the scene with snap enabled the actors will reposition to the pivot origin of the last selected actor in the group when going down to a value of 0 or a negat ...
Light as If Static setting does not Persist when Re-opening Project
Tools - Apr 28, 2016This bug was originally entered back in 4.8 as [Link Removed], but was closed as by design. The reason was, the mesh did not have Lightmap UVs, so using the 'Light as If Static' option would not wor ...
[CrashReport] UE4Editor_SequenceRecorder!FAnimationRecorder::UpdateRecord() [animationrecorder.cpp:464]
UE - Anim - Sequencer - Sep 14, 2017This is a common and longstanding crash that has affected more than 300 users since 4.12. The callstack is closely similar to [Link Removed], although with different error messages. User Descripti ...
[CrashReport] UE4Editor_UnrealEd!TArray<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0>,FDefaultAllocator>::AddUniqueImpl<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0> const & __ptr64>() [array.h:1805]
Tools - Sep 20, 2017This is a longstanding crash that occurs with low frequency per release, but has affected 400 users since the 4.11 release. Unfortunately among all of them, only one has provided any description. ...
[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia
UE - Graphics Features - May 14, 2019Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...
Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.
UE - Rendering Architecture - Materials - May 30, 2025In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...