Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_UnrealEd!UFbxSceneImportFactory::ImportOneSkeletalMesh() [fbxsceneimportfactory.cpp:2017]
Tools - Nov 10, 2017This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 2014 USkeletalMesh *ImportedSkelMes ...
[CrashReport] UE4Editor_Engine!FMaterialShaderMap::GetMeshShaderMap() [materialshader.cpp:2395]
UE - Graphics Features - Mar 30, 2018User comments in crash group:Duplicating material and switched it cause i have to use itChanging a landscape material.I just import World Machine landscape with multi-layered.Crash when reaching 16 ...
Composite font uses a sub-font, even when the sub-font doesn't support the character
Tools - Apr 7, 2016I have a fix for this shelved in CL# 2937344, so it would be good to get it into 4.12 once the user verifies the fix. ...
[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 ...
[CrashReport] UE4Editor_LandscapeEditor!FLandscapeEditorCustomNodeBuilder_TargetLayers::HandleAcceptDrop()
UE - LD & Modeling - Terrain - Landscape - Jul 6, 2017This is a common crash affecting users in 4.16.2. It is similar to [Link Removed], which was potentially fixed in 4.16.2. Users have not provided any additional information. Source Context 803 ...
When Sequencer's Add Filter Menu>Keyed(U) is enabled, adding a Key to an actor that previously failed the Filter (had zero Keys) does not immediately include the Keyed actor in the filtered list (if fails FSequencerTrackFilter_Keyed::PassesFilter)
UE - Anim - Sequencer - Jun 25, 2025When Sequencer's Add Filter Menu>Keyed(U) is enabled, adding a Key to an actor that previously failed the Filter (had zero Keys) does not immediately include the Keyed actor in the filtered list (if ...
Importing through Python fails
UE - Editor - Content Pipeline - Import and Export - Feb 20, 2019Version 4.21:The script result in popping the Alembic Import windows instead of a silent importThe provided options are ignored by the importer. Version 4.22: Results in the provided callstack wi ...
FAnimationRuntime::BlendPosesPerBoneFilter() causes an assertive crash when Skeletal Mesh LOD is changed
UE - Anim - Runtime - Nov 1, 2023The crash occurs from "check(BoneBlendWeights.Num() == NumBones);" This crash occurs when the following conditions are met;The skeletal mesh LOD is changed.The number of bones is difference between ...
Editor crash on level load when bUseActorFolders is true after dragging Actor into another folder in the Outliner
UE - World Creation - Worldbuilding Tools - OFPA - Mar 7, 2023From licensee: Hello! Our level streaming setup enables the bUseActorFolders on our levels. When moving the Actor into another folder via the Outline, the editor will crash on the next load Assert ...