Unreal Engine Issues

OSVR crashes UE4 on exit of -game -vr

Found on: //UE4/Dev-VR CL-2967563 Sometimes (3/5), when exiting -game -vr with the OSVR running, UE4 will crash. ...

"Content Examples" project's navmesh crashes editor

In UE4.5, Opening a Content Examples project and opening the "NavMesh" level, selecting "SM_DemoCube" and moving it results in the editor crashing according to user. ...

4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

Changing Material for Landscapes with Visibility tool causes Crashes

After a user creates a hole using the visibility tool on a landscape UE4 crashes. ...

Crash when attempting to save Soft Object Reference

Engine will crash when attempting to save soft object reference. "FArchive does not support FSoftObjectPtr serialization. Use FArchiveUObject instead." Also reproduced in Main CL #4247864 ...

Crash on mobile OpenGL with a retainer box

QAGame Crashes on launch on iphone 6 (iOS 8)

this crash was encountered during the mobile compat for 4.15. So far, just this device has been affected. ...

Crash on bake pose when skeleton contains a virtual bone

When a skeleton contains a virtual bone, performing Bake Pose can crash the editor. ...

Python commandlet crashes when spawning actors in a level

Using the python commandlet to spawn actors within a Map and then saving it causes a crash in the commandline. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286),  4.23 (CL - 6338849) ...

RayTracingGeometry.UpdateRHI(); crashes at checkf BuildParams.IsEmpty()

When custom RayTracingGeometry is created, a crash is triggered by an assert at: Engine\Source\Runtime\Engine\Private\Rendering\RayTracingGeometryManager.cpp line 252  "Unexpected entries in BuildP ...