Action replace with regex not working

I'm kinda new here so i'm probably wrong but shouldn't this action:

Replace with regular expression:
Regular expression: Feat. $/
Replace matches with:

Be deleting every " Feat. " located at the end of the artist field?
Thank you for your time!

The . is any character, perhaps you have to escape it
The / behind the $ is superfluous.
The regular expression is case sensitive, i think.

So just
Feat. $
should do.