Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-Slate!FSlateApplication::OnMouseUp(EMouseButtons::Type,FVector2D) [SlateApplication.cpp:5321]
UE - Anim - Rigging - Feb 15, 2021Generated from CrashReporter User information:Tried to choose f_med_brw_body_skmesh for the retargeting pose as mentioned at: https://docs.unrealengine.com/en-US/Resources/Showcases/MetaHumans/Reta ...
Crash when not saving level after using MovieRenderQueue for that level
UE - Editor - Content Pipeline - USD - Feb 8, 2022Crash when not saving level after using MovieRenderQueue for that level Repro rate 3/3 Regression Yes, issue is not reproduced on //UE5/Release-5.0-EarlyAccess at CL 16682836 from LauncherFatal er ...
[CrashReport][Assert] Engine!static class FText R CC AddParameter FMaterialCachedExpressionData QEAA_NAEBUFMaterialParameterInfo AEBUFMaterialParameterMetadata AEAPEAVUObject AEAPEAVUTextureCollection AEAVFText Z QEBA AV7 AEBUFMaterialCachedPa
UE - Rendering Architecture - Materials - Jun 20, 2025#15 crash out of 7012 in UE 5.6.1 on Windows#7 crash for UE - Rendering Architecture in UE 5.6.1 on Windows#2 crash for UE - Rendering Architecture - Materials in UE 5.6.1 on WindowsAssertion failed ...
ResavePackages commandlet with -fixupredirects flag won't update asset references on shared collections
UE - Editor - Content Pipeline - Content Browser - Mar 29, 2018We currently have two methods of fixing up redirectors: the ResavePackages commandlet and the Fix Up option within the editor. While the editor's option correctly handles collections via FAssetFixUp ...
Get Physics Linear Velocity node does not return the correct values in UE5
UE - Simulation - Physics - Nov 24, 2021The Get Physics Linear Velocity node seems to only output a vector of 0.0, 0.0, 0.0 no matter what the velocity of the object it's measuring is. Tested in //UE4/Release-4.27 @ CL 17735300 and th ...
Level Bounds Calculated Incorrectly when using Particle System Components
Tools - Nov 20, 2016If an Actor blueprint contains a particle system component (PSC), the Level bounds behave differently based on if the particle template is / is not Null. If the template is Null, Level Bounds stret ...
Lumen Card Sharing is active on material with custom primitive data
UE - Graphics Features - Lumen - Aug 13, 2025The wrong emissive value may be used on Nanite objects with custom primitive data when Lumen card sharing is enabled. This issue can be mitigated with: r.LumenScene.SurfaceCache.AllowCardSharing 0 ...
Editor numeric input fields don't support double precision numbers.
UE - Editor - UI Systems - Aug 9, 2024Even if we support double precision numbers at core, it's impossible to enter a small number in the numeric fields. It makes sense for floats and avoids bloating the UI, but I remember a discussio ...
[CrashReport] FMacWindow::ApplySizeAndModeChanges | SWindow::ReshapeWindow()
UE - Platform - Apple - Dec 1, 2017This is an infrequent Mac crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to both [Link Removed] and [Link Removed] Call ...
[CrashReport] UE4Editor_Slate!FDelegateBase::Unbind()
UE - Editor - UI Systems - Slate - Jul 24, 2017This is a common crash affecting users in 4.16. User Descriptionstrying to import a texture D: Source Context 137 /** 138 * Unbinds this delegate 139 */ 140 ...