Photoshop acting weird

[defaultfftbz51sykrh]

Hi I am working on a Imac 2019 and for some reason Adobe is working very slow and is acting weirder and weirder every day. I followed instructions to reinsttal the Creative Cloud app, empty the maps in the library, but it is still not working.

Example: Photoshop is showing a black screen for instance and when I select size 100% size I have to scroll all the way up and see just a part of the picture.

[Francesco Della Peruta]

Hi, have you tried this to before reinstall:

https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html

[defaultfftbz51sykrh]

Yes all my programs were deleted. So its not een cleaner but an deleter. (had backups though...)

[Francesco Della Peruta]

Are you using Big Sur?

Please take a look at the known issues:

https://helpx.adobe.com/download-install/kb/macos-big-sur.html

[defaultfftbz51sykrh]

The problem continues, I have to toggle between the two views Full screen I see the image. On standard screen I have a black screen,