Unreal Engine Issues
Unreal Engine Issues
SceneCapture2d affects Niagara GPU particles with translucency sorting enabled
UE - Niagara - May 11, 2021The issue comes from sorting being abled while having a scene capture actor. The enclosed 7z contains assets relevant to reproducing the issue. ...
Crash at UAnimInstance::DisplayDebug() when a montage ends
UE - Runtime - Animation - Nov 8, 2022UDN case : [Link Removed] We are seeing a crash in UAnimInstance::DisplayDebug() at the following line: FString MontageEntry = FString::Printf(TEXT("%i) %s CurrSec: %s NextSec: %s W:%.2f DW:%.2f ...
Investigate render flush at SkeletalMeshComponent InitLODInfos
UE - CAPT - Control Rig - Apr 19, 2023From UDN : we are spawning a number of characters at the same time during the game, and seeing a major framerate hitch when we do so. After the characters have been spawned, we use SetSkinnedAssetA ...
Crash clicking on "Recent Levels" or "Package Project" in File menu
UE - Editor - UI Systems - Slate - Jan 22, 2016I tried to debug. In:for (int32 StackIndex = Stack.Num() - 1; StackIndex >= FirstStackIndexToRemove; --StackIndex) { Stack[StackIndex]->Dismiss(); // <-- here } It crashes because Stack is em ...
Bright mesh outlines using Temporal AA with Gaussian Blur DOF
UE - Graphics Features - Feb 17, 2017Since the last engine merge in FN Main, any mesh that silhouettes against DOF will produce a bright, halo like effect on the outside edge. The further away the background is from the silhouetted mes ...
UBT relies on a stale Multitouch framework location
UE - Platform - Apple - Aug 10, 2020UBT complains about not being able to locate Multitouch.framework ...
Contact shadow has box artifacts with backlighting for two sided Subsurface shading model
UE - Graphics Features - Shadows - Nov 14, 2023See slack channel: [Link Removed] ...
[UDN-19505621] Hide Selected At Startup Issue
UE - Editor - Jun 10, 2025From [Link Removed]: 你好，我发现这里的选项有一些工作逻辑不一致，提一个改进建议： 当手动隐藏Actor小眼睛图标的时候，设置Hide Selected At Startup 是无效的，这具有很大的误导性，而其他任何情况下，工作都是正常的，比如： 1.小眼睛隐藏+Show All At Startup 2.小眼睛隐藏+Show Selected At Startup ...
dtNavMeshQuery::findNearestPoly uses hardcoded array size
UE - AI - May 18, 2015dtNavMeshQuery::findNearestPoly uses hardcoded array size which results in errors when search radius would require using more polygons then hardcoded the 128. ...
Crash in TMap struct deserializer
UE - Foundation - Core - Sep 20, 2016When deserializing a TMap<FString, FString> with the JsonStructDeserializer, the Engine crashes. ...