Unreal Engine Issues
Unreal Engine Issues
Leaving engine open for an extremely long time builds up memory usage, eventually crashing upon any activity
Tools - May 26, 2015Edit MattK: Not reproducible yet If the editor is open and used for a long period of time without being closed, it stores memory use. After building up a significant amount of resources building us ...
Crash on loading pre-4.20 cloth data when compute skin cache is enabled in 4.21
UE - Graphics Features - Mar 19, 2019According to information from the licensee, the else clause was added to "FSkeletalMeshLODModel::(GetClothMappingData()" at CL 4437969 , but if it is the cloth data existing from 4.20 or earlier, it ...
[CrashReport] Crash related to asset export - UnFbx::FFbxExporter::FillExportOptions() [fbxmainexport.cpp:152]
Tools - Sep 28, 2017This is a trending crash coming out of the 4.18 previews. It seems to be related to exporting assets from the editor. User DescriptionsWhen Exporting assets (static meshes) multiple times via RIGHT ...
5.5.3 insights crashes when opening .utrace files with "RenderCommands,RDG,RHICommands" channels.
UE - Foundation - Insights - Feb 19, 2025The customer provided reproduction steps and a trace file that crashes Insights. From the customer: manually placing if (!CurrentGraph) Unknown macro: { return; } nullchecks in RenderGraphInsi ...
Crash occur when switching the Ray Tracing shadow function when only shadow is enabled in the Ray Tracing
UE - Graphics Features - Lumen - Sep 16, 2020According to the licensee, this problem is caused by a variable inconsistency in Cvar. The cause seems to be the difference between the CVar reference when generating RayTracingSceneRHI and the CVa ...
[Quartz] Play Quantized Crashes When Played On An Audio Component Spawned With 'Persist Across Level Transition'
UE - Audio - Quartz - Jul 15, 2022There's a crash when "Play Quantized" is used on an Audio Component that was constructed via the functions "Create Sound 2D" or "Spawn Sound 2D" when the option 'Persist Across Level Transitions' is ...
Crash opening blueprint when a node class has been removed (e.g., anim blueprint with Ragdoll node with Immediate Mode plugin disabled)
UE - Gameplay - Blueprint Editor - Jan 26, 2017Crash occurs when the user attempts to open an anim blueprint containing the Ragdoll node, when Immediate Physics is disabled. ...
Fbx Importer crash if answering no to the incompatible skeleton dialog
Tools - Apr 11, 2017Quote from the licensee (FbxSkeletalMeshImport.cpp inside "// merge bones to the selected skeleton"): this happens because in UnFbx::FFbxImporter::SetupAnimationDataFromMesh, the function FindFBXMe ...
Deleting animation key values of ParagonKhaimera's 1D BlendSpace while the animation is previewing in Animation Editor will result in Engine crash
OLD - Anim - Jan 30, 2019Deleting ParagonKhaimera BlendSpace 1D key values while the animation is previewing in Animation Editor will result in Engine crash. ...
Animation Modifiers that contain a null Animation Sequence value cause the Engine to crash when applied to an Animation Sequence
OLD - Anim - Nov 14, 2018When an Animation Modifier passes a null Animation Sequence value to an Animation Sequence the Editor will crash. This is a regression from 4.20.3 (CL-4369336). This was reported and tested in 4.21 ...