Hallo,
eine der Möglichkeiten, die mir bekannt gemacht wurden wäre Photoshop neu zu installieren. Dann wäre da noch diese (englischsprachige) Anweisung für MAC:
This is for Mac (Apologies for PC users I'm not sure what the fix is there)
1. Open Finder
2. (From top menu bar) Select: Go > Go to Folder
3. Enter: ~/Library | Click: Go
4. Locate (Do not open): "Preferences" folder | Right click (or control Click): "Preferences" folder
5. Click: Get Info
6. Expand: Sharing & Permissions
7. Click: "Lock" Icon (bottom right) | Enter your admin credentials and accept.
8. Give ALL users "Read & Write" preferences. (In my case I had my profile user and an "Everyone")
9. (For all the users) Click on the "Gear" icon below | Click "Apply to Enclosed Items..."
10. Open Bridge and rejoice
Hans-Günter