Unreal Engine Issues

Crash in FVulkanLinuxPlatform

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

"Support Compute Skincache" throws an Assert for games on Linux

After enabling "Support Compute Skincache" in the project settings and packaging a game on Linux, the packaged game will throw an assert. Any setting that turns "Support Compute Skincache" on automa ...

Sequential Level Loading in Python causes Crash

Loading all the levels selected in the Content Browser and running the aforementioned Python script causes the editor to crash Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 5 ...

When launching from Mac to iOS, the process does not end normally, so the second and subsequent application launches from the iOS device are not performed properly

If you deploy the app to the iOS device using the Mac editor's Launch button or Project Launcher, the second and subsequent launches will fail. The following message is output when startup fails. T ...

Missing receipt error packaging Blueprint project for tvOS with custom iOS icon (Launcher build)

This failure occurs when trying to package SunTemple for TVOS. It did not occur with a blank blueprint project, until I added a custom iOS icon and tried to package a second time (I hypothesize th ...

Runtime Errors appearing in Sequencer if fixed frame rate is set in projects settings

This ensure happens only when the Start and End of the sequence is set in the "neigborhood" of the keyframe and only if the project framerate is to be Fixed on 60FPS. If you for example play the who ...

Inserting before a FSlateImageRun twice will cause crash

Ambient Occulsion Decals still render on Static Meshes flagged to ignore them

Ambient Occulsion Deferred Decal Materials seem to ignore the Receives Decals flag that is in the Rendering section of the Details Panel for the Static Mesh. Tested in 4.21.2 (CL - 4753647), 4.22 ( ...

Crash when applying Radial force to a BSP when Radial force is set to affect World static

If a radial force component applies force to a BSP the editor will crash. The radial force will need to be set to affect world static objects. ...

Crash when using ConstructorHelpers on Niagara assets

When using the ConstructorHelpers templated function, FObjectFinder, with Niagara assets, the editor crashes. Tested in 4.21.2 (CL - 4753647), 4.22 (CL  - 5660361),  4.23 (CL - 5806860) ...