Unreal Engine Issues
Unreal Engine Issues
Fragments of a geometry collection go through complex collision
UE - Simulation - Physics - Destruction - Jul 23, 2020Fragments of a geometry collection can not hit the mesh which is set "Use complex collision as simple" ...
Mac editor mobile preview crash with MSAA on
UE - Platform - Mobile - Mar 1, 2021setting GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...
C.haos Cloth : ClothLOD does not change when out of view
UE - Runtime - Deformable - Jan 6, 2022Cloth LOD Index is changed only during the mesh is on the screen. LOD Index is set to 0 at spawning, so clothing simulation runs as minimum LOD level until the mesh is in the field of view. It's no ...
Vector NotEqual / != displays default tolerance of "0" instead of "0.0001"
UE - Framework - Blueprint Editor - Nov 22, 2022If this is just a display issue, it's still fairly significant because a tolerance of 0 and anything else are very different. I have not confirmed if it's only display or if the comparison is actual ...
Global Distance Field Precision Issues Far From Origin
UE - Graphics Features - Jan 26, 2023[Enduring] Appears to be in the visualization rendering of the distance field, distance field shadows were unaffected. There was one instance where the bug did not replicate as expected. This was wh ...
Blueprint Nodes no longer Grid Snap to straight lines
UE - Framework - Blueprint - Feb 13, 20235.0:[Link Removed] 5.3:[Link Removed] Attached is a video of the two screenshots overlaid and lined up by their top edges. It appears that the Begin Play node (and others?) have more padding now, w ...
Crash Duplicating an empty AtlasRow material node
UE - Rendering - Architecture - Materials - Nov 29, 2023This isn't a hard crash, but a "verify(...)" from MaterialExpressions.cpp, line 559. ...
Out-of-Bounds Access During Partial Updates of ISMC Per-Instance Custom Data
UE - Graphics Features - Jan 6, 2026When using instance custom data values, removing an instance and changing the number of custom data floats in sequence can cause an array-out-of-bounds crash. The underlying arrays are not resized ...
Crash in blueprints when opening right-click menu
UE - Gameplay - Blueprint - Apr 22, 2015Right clicking inside the event graph of a blueprint that is derived from PhysicsCollisionHandler will crash the editor CrashReporter: [Link Removed] ...
Compile error when declaring UPROPERTY() TArray with TFixedAllocator
UE - Foundation - Core - Feb 20, 2015Declaring a UPROPERTY() TArray with TFixedAllocator fails to compile. Output log states "Missing '>' in 'tarray'." Removing/commenting out the UPROPERTY() allows the project to compile correctly. ...