Continuous error log messages on a non-Intel GPU

[xessgamedev]

[2025.09.04-08.16.26:362][741]LogXeFGSDK: Error: xellAddMarkerData failed with: -4
[2025.09.04-08.16.26:362][741]LogXeFGSDK: Error: Failed to add interpolation start marker
[2025.09.04-08.16.26:362][741]LogXeFGSDK: Error: xellAddMarkerData failed with: -4
[2025.09.04-08.16.26:362][741]LogXeFGSDK: Error: Failed to add interpolation end marker

It is a known issue and we'll fix it in the next release.

You could just ignore them if you don't enable bUseLoggingInShipping with Unreal source.

But if you enable bUseLoggingInShipping with Unreal source, you could remove these error log messages via -XeFGLogLevel=4 or set r.XeFG.LogLevel=4 in Engine.ini as follows:

[SystemSettings]
r.XeFG.LogLevel=4

Sorry for the inconvenience for you.