P: Program error when saving, lag when zooming, changes not reflecting in document window (macOS)

Affinity is looking more appealing every day 🤦🏻‍♂

Lost a lot of work today because I could not save my work due to program error. It would not let me create a stamped layer either.

Having the exact same problems, highly frustrating!

Having same problem on Mac as of about 16:00 today

Cannot open any image, without disabling graphics processor - but it automatically reloads. Cannot close PS 22.1 without using task master. Windows 10 also updated today, so where the issue lies I don't know?

Windows 10 home 1909 64bit OS build 18363.1256

Apparently I can't flatten layers either, or even saving out to PNG, etc - this is even more troubling - 

- ‘could not save because of a program error’ when saving

This is creating MAJOR problems for me...

Has anyone else encountered this problem and figured out a solution? I have tried working from a psd file on the desktop as well as on an external drive and it will sometimes let me save once and then gives me an error if I try to save again. I am using the latest version of PS

*dunbar  

The solution from Tim above has worked for me. Giving (or re-giving) Photoshop access permissions fixed it!

I occasionally have the same problem. Yesterday I restarted comp and stopped getting the error. Resaving .psb file worked (progress percentage goes up to 100% without getting an error). However, today I found, that there is still only first version of my .psb file on my disk (google drive file stream, but allowed to offline storage). It's absolute crap, what they produce in Adobe. 6 hrs work gone!