Application Launcher messed up after trying some Plasma styles

I installed some Plasma styles from the KDE store (like Breeze Glass). When I went back to the Breeze Dark style, there is a large grey box now visible between the list and grid of icons in the Application Launcher:

There doesn’t seem to be anyway to get rid of it. I’ve tried deleting many KDE config files to reset the changes, but it hasn’t helped. Any help would be appreciated.

Does deleting ~/.cache or rebooting help?


I deleted ./cache and restarted and that fixed it! Thank you so much! You’re amazing!