When trying to add a stamp as a brush tip on the pixel brush I only get a blank box and nothing is added to the tips. The clipboard functionality works fine.
I recently deleted and reinstalled Krita and it looks like when I switch to using the stamp (of which nothing is selected) it reverts to an old, very pixelated version of a stamp I made when using the last version, although I don't know where this image stored or how to delete it.

Any help is most appreciated.