Unreal Engine Issues
Unreal Engine Issues
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) ...
Project breaks if Online Subsystem plugin is disabled
UE - Foundation - Core - Apr 25, 2017Disabling Online Subsystem prevents the project from loading. On Windows, this produces an error shown in attached screenshot. On Linux, this causes a crash with the attached callstack on project ...
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 ...
Editor added components can fail to attach to a native root component
UE - Gameplay - Blueprint - Feb 8, 2021An actor instance's editor added components can fail to attach to the root component of the actor when changing the native root component's mobility from static to movable. The failure happens durin ...
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 ...
Crash occurs when opening FP_Walk_Fwd in the First Person Template
UE - Anim - Runtime - Sep 12, 2023This is a regression. Tested in //UE5/Release-5.2 CL26001984 Opening the FP_Walk_Fwd animation in the first person template results in an assertion. ...