Mac editor mobile preview crash with MSAA on

UE - Platform - Mobile - Mar 1, 2021

setting  GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...

C.haos Cloth : ClothLOD does not change when out of view

UE - Simulation - Physics - Jan 6, 2022

Cloth 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, 2022

If 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, 2023

5.0:[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, 2023

This isn't a hard crash, but a "verify(...)" from MaterialExpressions.cpp, line 559. ...

Crash in blueprints when opening right-click menu

UE - Gameplay - Blueprint - Apr 22, 2015

Right 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, 2015

Declaring 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. ...

If child actor component is already also overlapping something it's parent will not fire off an overlap event

UE - Gameplay - Jan 11, 2016

If the a blueprint has an overlap event and that blueprint has a child actor component with an overlap event then the child can stop the parent from firing off an overlap event if the child also ove ...

Target pin creates compile errors unless value is set outside of node

UE - Gameplay - Blueprint - Jan 8, 2015

Some nodes have target pins that auto-fill to target: self. However, unless a value is passed into this node from a get or other means, the blueprint will not compile. ...