Unreal Engine Issues
Unreal Engine Issues
Linux: Assertion at splash screen when trying to open UE4Editor
UE - Platform - Linux - Mar 21, 2017I ran into this while looking to verify [Link Removed] at CL 3355923. I logged the issue I was verifying the fix for last night and have not updated anything locally, so the "OpenGL 4.3 not supporte ...
Exception on missing file during GC in horde storage
UE - Foundation - Horde - Storage - May 7, 2025During GC, if a file was manually deleted (but the storage system is still track), GC can erroneously fail (and never remove the reference). This causes a backup in GC, putting the whole algorithm i ...
Editor crashes due to a material that contains MPCs migrated from another project
UE - Rendering - Architecture - Materials - Apr 29, 2024[2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning: LoadPackage can't find package /BEURRE_040824_041224/NewMaterialParameterCollection. [2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning ...
[CrashReport] Mac crash - UE4Game!FShaderCache::InternalSetGraphicsPipelineState
UE - Graphics Features - Dec 1, 2017This is a common Mac crash in 4.18. It occurs in Game mode, not in Editor. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017.11.21-20.30.4 ...
Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component
UE - Anim - Sequencer - Jan 5, 2022This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...
Making changes to a Camera Shake while previewing the Camera Shake triggers a crash
UE - Anim - Sequencer - May 23, 2022This is not a regression. Tested in //UE4/Release-4.27 CL 18319896 Making changes to a Camera Shake while previewing the Camera Shake triggers an Assertion upon compiling. ...
[CrashReport] UE4Editor_UMG!CastChecked<UUserWidget,UObject>
UE - Anim - Sequencer - Aug 14, 2017This is an early trending crash in the 4.17 release. This may be a regression as there is no initial evidence of this callstack occurring in 4.16. User DescriptionsJust compiled my widget Source C ...
[CrashReport] UE4Editor_Engine!UEdGraphPin::SerializePinArray() [edgraphpin.cpp:1808]
UE - Gameplay - Blueprint - Sep 26, 2018User comment in crash group:I was try to copy the AI MOVE TO(from pawn sensing) node inside a function, i couldnt copy it because it said conflicting node substituted during paste;, so i tried to cu ...
Spline Mesh regression on older iOS phone
UE - Platform - Mobile - Jun 10, 2019Regression with rendering Spline Mesh Components seen on older (5s) iOS device. I did not reproduce a crash with an iPadPro A1701 or an Android Note 4 Confirmed in 4.23 MAIN at CL 6910902 ...
[CrashReport] Mac crash - FRCPassPostProcessInput::ComputeOutputDesc()
UE - Graphics Features - Sep 28, 2017This is a new Mac callstack that just appeared after the 4.17.2 hotfix. The callstack shares similarities to older Windows crashes and may be related:https://jira.it.epicgames.net/browse/UE-42135ht ...