Issues with app launcher - darkened/blurred background not appearing in app tray

It was working when i first installed gnome manjaro, but for some reason it has stopped adding the blur and darkening the background whenever I launch the app tray. I tried disabling my extensions and changing back to the default shell, but neither of these helped.
I suspect this is because I tried installing Albert launcher but It ended up not working; however, the Albert file is no where to be found. May or may not be the cause.

any help is appreciated, thanks