Unreal Engine Issues
Unreal Engine Issues
A niagara emitter with an empty renderer module does not return a position in the package
UE - Niagara - May 11, 2022FBX import freezes in DataPrep
UE - Editor - Content Pipeline - Visual Dataprep - Mar 3, 2025FBX file import freezes UE while trying to import into DataPrep by the Interchange importer. The import will start, but then a message will pop up stating "Creating snapshot of world content ... " ...
Unreal Editor can get in an infinite while loop when checking the History of an asset under Perforce.
UE - Editor - Oct 21, 2024Unreal Editor can get in an infinite while loop when the action Asset->Source Control->History is used in a Blueprint Asset. Reportedly, this issue is only encountered when using the Branches featur ...
Crash after changing either the Anim Start or End times of an Animation Composite
UE - Anim - Runtime - Jul 19, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 Crash after changing either the Anim Start or End times of an Animation Composite when using Enter to confirm their value. ...
Crash with SceneCapture DepthPrepassOptimization enabled
UE - Rendering - Architecture - May 22, 2026Level asset "Diff against depot" opens P4 Merge tool
UE - World Creation - Worldbuilding Tools - Mar 1, 2024You can right click a level asset in the editor's Content Browser and do the action Source Control > Diff against Depot. However, this does not provide a useful diff window. It currently opens the d ...
Crash when entering Brush Editing mode with a Sequence spawnable Post process volume
UE - Graphics Tools - Modeling Tools - BSP - Mar 18, 2024Crash with Assertion failed shortly after launching packaged First Person CPP project on Oculus Mobile - Referencing SparseArray.h:86/87
UE - Platform - XR - Apr 30, 2019The following assertion throws after the project crashes when playing on the device: Assertion failed: Index < GetMaxIndex() [File:D:/P4Workspaces/Switch_3/Engine/Source/Runtime/Core/Public/Contai ...
Destroying a welded actor is causing an Array index out of bounds crash on 5.6
UE - Simulation - Core - Jul 30, 2025Destroying a welded actor is causing an Array index out of bounds crash on 5.6. The licensee has provided a repro project that reliably causes a crash whenever the spawned actor is destroyed. There ...
[CrashReport]UnrealEditor-DatasmithImporter!FDatasmithImporterHelper::ImportInternal(UFactory *) [DatasmithImporterHelper.cpp:218]
UE - Editor - Content Pipeline - Datasmith - Jul 18, 2022Generated from CrashReporter ...