Unreal Engine Issues
Unreal Engine Issues
FAssetRegistry::SaveRegistryData fails check on redirected umaps
Tools - Feb 22, 2017When FAssetRegistry::SaveRegistryData() is invoked for a umap redirector it will fail the check check(!bIsMap || (InDependencyType == EAssetRegistryDependencyType::Soft)); Because the redirector ...
Nullptr dereference in FHeadMountedDisplay::UpdateSplashScreen()
UE - Platform - XR - Apr 5, 2017A customer has had problems running a game with a splash screen when passing -game flag to the editor. UpdateSpashScreen will call GetCurrentFrame, which can return a nullptr but fails to verify it ...
iPadPro2 Splash Screen distortion on app Launch
UE - Platform - Mobile - May 7, 2018iPadPro2 splash screen distorted on app launch. Looks like there is a fix for this in FN branch that can be brought over. Engine/Source/Runtime/ApplicationCore/Private/IOS/IOSAppDelegate.cpp http ...
Animations don't update on the first frame of shots
UE - Anim - Sequencer - Jul 11, 2018Looks like this only happens for shots. I think this is because the tick prerequisites get set up on the frame of evaluation, and the skeletal mesh component doesn't get ticked until the next frame. ...
[CrashReport] UE4Editor_RenderCore!FPendingCleanupObjects::~FPendingCleanupObjects
UE - Graphics Features - Aug 21, 2018Comments from users in crash group:I tried to launch my project 1266 FPendingCleanupObjects::~FPendingCleanupObjects() 1267 { 1268 QUICK_SCOPE_CYCLE_COUNTER(STAT_FPendingClea ...
FTransform(ENoInit) ensures in Debug on mobile platforms
UE - Foundation - Core - Sep 25, 2018As of 4.20, ENABLE_NAN_DIAGNOSTIC is now enabled in all Debug configurations. However, this does not work well with the TransformNonVectorized that is used on platforms like android. If this combina ...
Landscape Paint Layers will not scroll to the end when using mouse wheel
UE - LD & Modeling - Terrain - Landscape - Sep 28, 2020In a normal detail panel, each element has its own SDetailSingleItemRow and are mostly uniformly sized with some exceptions of having a few bigger rows (i.e. asset pickers). However, these layers ar ...
HiResScreenshot has incorrect masking when screenshot resolution scale does not match the viewport.
UE - Rendering Architecture - RHI - Sep 6, 2021After a bit of investigation, the way to fix this would be to modify MergeMaskIntoAlpha to pass in the actual resolution scale and the requested size, and only mask the overlapping pixels. Currently ...
"PivotPainter_PerObjectData" node's "Random Value Per Element" output crashes with an assertion when used with a "Cross" node
UE - Rendering Architecture - Materials - Jan 31, 2022This is a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0 CL18747223 GitHub When using the Random Value Per Element from a PivotPainter_PerObjectData with a Cross nod ...
When SimpleLink and SmartLink are enabled, CustomLinkId is sometimes missing.
UE - AI - Navigation - Jun 21, 2022If trying to find NavLinkProxy with SimpleLink and SmartLink enabled by searching the path, sometimes CustomLink is not found (CustomLinkId=0). Since only one NavLinkProxy is located on the level, ...