Groove agent library removed, files stay visible with red stop signs

I have removed the “Allen Morgen” groove Agent Library from with the library manager. But somehow the instrument files keep visible in the groove agent plugin. They are marked as red stop sign.

I tried reinstalling and removing the library, but then the instrument files just are doubled and the good files are removed and the red stop sign files remain there.

Anyway to get rid of these?

I already found the answer.

I removed the mediabay3.db file from C:\AppData\Roaming\Steinberg\Groove Agent SE_64
Then the database was rebuild.

These are the database entries in the media bay database. Not the files itself.
You need to re-scan the media bay.