Unreal Engine Issues

Possible data loss/corruption when loading levels in editor

Reported behavior: Given Level_A which contains object_X, where object_X references Level_BDeleting object_X causes AssetRenameManger to check if we need to patch up other levelsLevel_B is load ...

Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers. This onl ...

A Blueprint containing an array Swap node will fail to be nativized.

Blueprint assets that utilize an array "swap" node to swap elements cannot currently be converted to C++. Current workaround: Either avoid use of the "swap" node or exclude the Blueprint asset from ...

Bake To Control Rig produces empty keys when rig uses Import Skeleton in Construction Event and binding is a spawnable in a subsequence

Bake To Control Rig fails to key procedurally-created controls when all three of the following are true:The Control Rig creates its hierarchy at runtime via Import Skeleton in the Construction Event ...

OSVR fatal error while playing in -game

Found on: //UE4/Dev-VR CL-2967563 About 1/6th of the time I'd start a -game instance and go in to stereo on the OSVR, the game would seemingly just close itself. I say close as opposed to crash, si ...

The frame rate could be locked to around 45 occasionally on 90Hz android device.

Use of SpiralBlur-SceneTexture MaterialFunction in translucent material results in compile errors

This appears to be new in 4.25. ...

Android ETC2 Debug Builds Crash on Startup

Android apps build with the debug configuration on ETC2 will crash on launch. ...

Editor crashed when opening TM-MeshPaint in QAGame

While reviewing [Link Removed] test case, I hit the following crash opening the TM-MeshPaint level. On first attempt shaders were compiling, on attemps after, editor crashes much faster. ...

BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.

Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...