Hi,
My custom process match rule breaks the Profile Switcher at the comma after closing the window :
/f:\\games(?!.*wallpaper_engine,.*palserver)/
first part stays in the Process Match and .*palserver)/
then replace the Config Profile set before closing the window.
First screenshot is after the rule creation, second is after closing/reopening Profile Switcher.
This should be fixed as of v12.4.8.15 BETA.
Thank you for reporting the trouble!