Unreal Engine Issues
Unreal Engine Issues
Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor
UE - Graphics Features - Feb 5, 2021The important step here is to unlink the middle layer after first relinking everything. ...
Engine crashes when trying to remove unused bones from skeleton
UE - Anim - Runtime - Mar 10, 2021Engine crashes when i try to remove unused bones. I have lot of things going on in those characters, they all share same skeleton. There are anim blueprints with control rig and pose drivers, there ...
Engine Crashes When Trying To Reimport Skeletal Mesh For One That Has No Clothing Data
UE - Simulation - Physics - Character - Jan 17, 2020The engine crashes when trying to reimport a skeletal mesh that has no clothing data. This seems related to https://jira.it.epicgames.net/browse/UE-86948. Found in 4.24.1 CL#10757647 Reproduced in ...
Crash when sculpting on duplicated landscape with edit layers enabled
UE - Graphics Tools - Terrain - Landscape - Jun 8, 2021Crash happens when trying to sculpt on a duplicated landscape that has edit layers enabled. This crash does not occur for landscapes that are duplicated with edit layers disabled. ...
Virtual Texturing causes crash
UE - Graphics Features - Jul 29, 2019Virtual streaming a 4K texture and setting the max texture size to 2048 causes the engine to crash. Tested in 4.21.2 (CL - 4753547), 4.22.3 (CL - 7053647), 4.23 (CL - 7445012), 4.24(CL - 7646041) ...
User-instanced subobjects owned by a streaming sublevel's Blueprint CDO cannot be garbage collected with the owning world after the sublevel has been reloaded in the editor.
UE - Gameplay - Blueprint - Feb 5, 2020Strong object reference properties of an 'EditInline'-decorated UCLASS type embedded within a native C++ struct definition can be instanced at edit time by the user as part of a variable's default v ...
Removing components from Landscape with simplified collision results in assertion
UE - LD & Modeling - Terrain - Landscape - May 18, 2017Performing operations on a Landscape with simplified collision can result in an assertion ...
Crash copying Geometry Cache Track in Sequencer
UE - Anim - Sequencer - Aug 6, 2020Geometry cache section will crash in PostLoad when track is copied. See UDN for alternative repro steps and more info on attached repro project. ...
In UInstancedStaticMeshComponent, when some instances have near-zero scale, removing instances crashes the engine
UE - Rendering Architecture - Oct 19, 2023Class "UInstancedStaticMeshComponent" deliberately leaves null pointers in the "InstanceBodies" array of FBodyInstances. This can be seen in methods such as: [Engine\Source\Runtime\Engine\Private\I ...
Selecting Reimport on a virtual texture results in crash
UE - Graphics Features - Nov 14, 2019Reimporting a virtual texture results in a crash. Tested in: 4.24P2 CL#10091930 , 4.25 CL#10183780 ...