I haven’t been able to reproduce the issue on my end.
Could you put together a minimalist, asset-free, blank project with just dummy levels and the config files?
To see if the issue can be reproduced in isolation from your project and save game code.
Other than that:
- Check if the issue occurs only in the editor or also in Standalone Mode or a packaged bulld.
- In Editor Settings, disable “Use less CPU when in Background” and see if that has any effect.