Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-MetalRHI!FMetalCommandBufferDebugHelpers::TrackResource(id<MTLCommandBuffer>, objc_object*) [MetalCommandBuffer.cpp:147]
UE - Rendering - Architecture - RHI - Dec 10, 2019Generated from CrashReporter ...
Gameplay Tag Query using NoTagMatch expression does not construct DebugString properly
UE - Gameplay - Nov 1, 2018The code in GameplayTagContainer.cpp has code for generating debug strings representing tag queries. Compare the code in EmitTokens in all other queries to the code in UEditableGameplayTagQueryExpre ...
virtual texture lightmap crash due to pixel format r8Unorm_srgb in MacEditor
UE - Rendering - Architecture - RHI - Mar 4, 2021Currently r8Unorm_srgb is required by virtual texture lightmap, and the Metal RHI simply forbids r8Unorm_srgb on Mac platform. Since the latest MacOS 11.0+ have the support of r8Unorm_srgb, we shoul ...
BBKeySelector does not handle multiple Object types
UE - AI - May 30, 2016It's not possible to configure a BB key selector to accept multiple different types of UObjects. The issue comes from using strings to identify declared key type filters, which doesn't work well fo ...
Insufficient stack size in async MediaCapture thread
UE - Virtual Production - Aug 21, 2023Reported from our partner Babooblab: The UDN Customer does not give any detailed information to reproduce the issue. However they specify the kind of issue (stack overwflow) and give a possible sol ...
Widgets always come in to viewport with a zorder of 0 after being removed and added back
UE - Editor - UI Systems - Apr 8, 2015If a widget is removed from parent and then gets added back to the screen later it will come in with a zorder of 0. ...
Execute Console Command r.SetRes Fullscreen breaks Dynamic Skylights when tied to Event BeginPlay
UE - Graphics Features - Apr 6, 2017Using the Execute Console Command 'r.SetRes 1920x1080f' directly with an Event BeginPlay node within blueprints, any Stationary/Movable Skylighting information is no longer visible. A simple workar ...
Paper2D: Editor hangs when assigning Sprite Atlas Group to Sprite
UE - Gameplay - Paper2D - Dec 16, 2025In UE 5.3 and later, assigning a Sprite Atlas Group to a UPaperSprite asset can cause the editor to hang and eventually crash. This behavior has been reproduced in 5.3, 5.6, and a recent UE5-main so ...
UFUNCTION in a derived class with a different signature will cause a crash when called
UE - Foundation - Core - May 12, 2016Reported by AnswerHub user. UHT should block UFUNCTIONs which hide other UFUNCTIONs with the same name but different signature. ...
TArray<UClass*> in UFunctions are not handled correctly in generated code
UE - Foundation - Core - Feb 27, 2015Reported on AnswerHub, but confirmed locally. Generated code converts the TArray<UClass*> into a TArray<TSubclassOf<UObject>>, which doesn't compile because TArrays are not compatible in that way. ...