Unreal Engine Issues
Unreal Engine Issues
Dynamic Collections do not display any results
UE - Editor - Content Pipeline - Content Browser - Sep 12, 2016Dynamic Collections do not display any results upon being created. Please note that opening a project that had a Dynamic Collection already selected may show the results at first. This is only tempo ...
Build crash when enabling r.CreateShadersOnLoad=1
UE - Rendering - Architecture - Shaders - Nov 10, 2025When "r.CreateShadersOnLoad" is enabled, cooking will crash due to failure to create a shader. This occurs on //UE5/Release-5.5, CL: 41545209 and //UE5/Release-5.6, CL: 45232827 ...
NavMoverComponent ConsumeNavMovementData returns true on any repeat call within the same game frame
UE - Runtime - Character - Aug 20, 2026UNavMoverComponent::ConsumeNavMovementData returns true on any repeat call within the same game frame, even when there is no nav movement to report. Callers that trust the return value then act ...
Dithered LOD Transitions not Rendering Correctly on iOS with Use Landscape Lightmap feature and Foliage
UE - Platform - Mobile - Jun 21, 2016Dithering appears aggressive and has a screen door-like effect when using the new Landscape Lightmap in combination with Foliage LOD changes. Owen Stupka attempted to reproduce the issue on his iPa ...
Project Crashes on UAIPerceptionComponent::RegisterStimulus()
UE - AI - Apr 26, 2016Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 785] Array index out of bounds: 2 from an array of size 2 Source Context: 363 return OwnerController->GetPawn(); ...
Character animations do not replicate when the character is attached to another actor
UE - Networking - Feb 10, 2015Character animations do not replicate when the character is attached to another actor. Setting the other actor to Replicate and Replicates Movement does not seem to make any difference. Reproduced ...
Overlap events do not trigger on landscapes
UE - LD & Modeling - Terrain - Landscape - Sep 24, 2015Overlap events do not fire on landscapes ...
Instanced subobjects are not always instantiated as expected.
UE - Gameplay - Blueprint - Aug 13, 2015Instantiation of subobjects does not behave as expected when using the DefaultToInstanced UCLASS specifier. The licensee that reported the issue provided a sample project with some ensures added whe ...
[4.10 P2] UI is offcenter for dropdown menus and tooltips in editor
Tools - Nov 2, 2015In Windows 10, on a system set up with 2 970GTX GPUs in SLI, the dropdown menues from the main navigation tabs will be offset and to the lower left of the screen when selected. ...
Mac ShooterGame crashes when loading into the match with Pak files
UE - Platform - Apple - Feb 15, 2017ShooterGame crashes when loading into the match on Mac when that ShooterGame was packaged with Pak files. The ShooterGame project was created using the Unreal Engine Launcher I do not see this is ...