Unreal Engine Issues
Unreal Engine Issues
"Pass-By-Reference" inputs to a multicast RPC can crash
UE - Networking - Oct 6, 2021Passing a parameter by reference for an RPC does not seem to be a supported operation, and UnrealHeaderTool will already throw an error if a networked UFUNCTION includes any OutParms. However, users ...
Crash/ensure when linking anim layers from animation update
OLD - Anim - Mar 12, 2020Originally reported here: https://udn.unrealengine.com/questions/562047/linked-layer-animation-blueprint-proxy-missing-ske.html When linking an anim layer during update, we get either an ensure or ...
Crash if the setting of PhysicalAnimationComponent is changed in the same frame as teleport processing
UE - Simulation - Physics - Apr 24, 2020Crash when ApplyPhysicalAnimationProfileBelow node and UPhysicalAnimationComponent :: UpdateTargetActors by UPhysicalAnimationComponent :: OnTeleport run in the same frame. Because RuntimeInstanceDa ...
Crash in FMaterialUtilities::CreateFlattenMaterialInstance when building Simplified HLOD layer
UE - World Creation - Worldbuilding Tools - HLOD - Aug 17, 2022From licensee: The issue here starts in FVoxelizeMeshMerging::ProxyLOD() where the FlattenMaterial created using FMaterialUtilities::CreateFlattenMaterialWithSettings() returns an empty struct. I d ...
Level editor viewports crash when deleting actors after a layout change
UE - Editor - Workflow Systems - Apr 18, 2022Reported by a customer while testing USD import. See additional URL ...
[AI] Crash while loading navmesh with async static mesh compilation enabled
UE - AI - Navigation - Jun 16, 2022I tried 10+ times but am unable to get this to reproduce locally. Licensee reports that this is a rare crash for them. ...
UMG - Drag/Drop crash on exit when dropping back onto an old slot.
UE - Editor - UI Systems - Jan 7, 2015When dragging and dropping a widget onto an old slot, it resulted in a crash on exit. ...
Clicking "Pause on Impact" with in the details of the InterpToMovement component will cause a crash
UE - Gameplay - Blueprint - Apr 30, 2015When checking the "Pause on Impact" check box within the details panel for the InterpToMovement component, the editor crashes ...
[CrashReport] Mac crash - libobjc.A.dylib!objc_retain() [UnknownFile]
UE - Platform - Apple - Nov 10, 2017This is a longstanding but low frequency Mac crash. User DescriptionsChanging camera shake values and testing in a new editor window Callstack from Log[2017.11.09-19.23.22:392][ 63]LogMaterial: Mi ...
Crash in FTickFunction::RegisterTickFunction
UE - Gameplay - Jan 31, 2017Per https://udn.unrealengine.com/questions/319627/uworldspawnactor-with-template-parameter-causes-cr.html ...