Unreal Engine Issues
Unreal Engine Issues
Moving folder of assets crashes editor
UE - Simulation - Physics - Dec 23, 2015Moving the contents folder for the Dynamic Clocks marketplace asset crashes the editor immediately. Frequency: 5/5 CrashReporter: [Link Removed] ...
Collision profiles are reset when blueprint is loaded
UE - Gameplay - Jan 6, 2025In UE 5.5 (and earlier versions), FCollisionResponse::operator== has incorrect behavior where it will detect that two collision response containers are identical if they have the same number of entr ...
WorldToClip/ClipToWorld transform in materials not behaving as expected
UE - Graphics Features - Dec 19, 2025In 5.3, the specified code will return all 0 or very small as expected. However in 5.4.4 and onwards (also checked in 5.6.1 & 5.7.1), it returns very large numbers. ...
Assets containing TSet or TMaps fail to Nativize
UE - Gameplay - Blueprint Runtime - Dec 12, 2016Multiple compile failures while attempting to nativize the QABP_Containers asset in QAGame. Errors:[2016.12.12-15.20.04:831][486]UATHelper: Packaging (Windows (64-bit)): xgConsole: QABP_Containers_ ...
Underscores do not appear in Category names
UE - Gameplay - Blueprint - Oct 31, 2016Underscores do not appear in Category names within blueprints. Regression (no) issue (does) occur in 4.12.5 ...
Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets
UE - Anim - Rigging - Retargeting - May 13, 2022Occurs 5/5 times Virtual Bones are not retained in Retargeted Animation Aim Offset. Regression does not occur as UE5 Manny assets are not available for retargeting before UE5. ...
Disabling bLerpUVs in Nanite Settings of Static Mesh causes texture warping in clusters
UE - Rendering - Graphics Features - Nanite - Jan 21, 2025The licensee has identified a potential fix by changing if( Settings.bLerpUVs ) to if( Settings.bLerpUVs || UVIndex == 0 ) On line 389 of NaniteBuilder\Private\Cluster.cpp in UE 5.5 ...
ChaosCacheManager is not reproducing Trailing Events
UE - Simulation - Core - Mar 28, 2025ChaosCacheManager (CCM) is not reproducing Trailing Events. Particles set to track Trailing Events correctly follow the position of the trailing event when the Geometry Collection (GC) is physically ...
Generate all Bodies on Selected Bones Does Not Generate Single Convex Hulls Uniformly
UE - Simulation - Core - May 12, 2022Occurs 5/5 Times Regression does not occur in //UE4/Release-4.27.2 @ CL 18319896 When 'Generating All Bodies' on a bone the single convex hull does not generate uniformly. ...
Plugin dependencies causing RI parameter initialization failures (UDN)
UE - Niagara - Oct 6, 2023Error on some Niagara emitters using the WindForce module: LogNiagaraEditor: Error: Invalid input type found while attempting initialize new rapid iteration parameters. Function Node: /Game/FX/Expl ...