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

how did you relaunch the old one??

I am having this issue as well!!

I also cannot copy and paste any layers. I tried saving it as save as web and my file turned to mush....

I know how you feel. Since the last update, this solution doesn't seem to work anymore!! 😞

Didnt work...im so frustrated I coul s**t

Exactly as the error says. I recently updated to the most recent version of PS and now it isn't working. 

I cannot save, save as, flatten, export any file with layers. This has happened twice now.

I am having the same problem. I cannot Save, Save As, or Flatten.

If I turn off the background layer, everything works. 

if I delete the background layer, everything works.

If I create a new white Fill layer, and then have it as the background layer, it stops working again. 

I can repeat this over and over with this same file.

Update: I rolled back to 22.0.1 and everything works perfectly.

Having the same issues here on Windows 10.

I was able to get my file to save by going to:

Settings > Privacy

Scroll all the way down to the bottom of app permissions and select File System

Then under "Allow apps to access your file system" I turned it off, and then back on.

Hope this helps people out there.

If your image is 16 bit then change it to 8 bit. That solved the problem in my case without losing anything of my work

I am having the same issue. I am on windows 10 working with cc 2021 I have a photoshop design I have been working on for weeks now and the last week this error message has come up and I haven't been able to save any of my work. This didn't help my fix the problem. 

Hello Jeffrey, I get the «Could not complete your request because of a program error». I have discussed the problem with Adobe Care on twitter this afternoon: They recommended that I downgrade Photoshop to the previous version, and use that until the product team has found a fix to the problem – it seems to be a bug in the latest Photoshop update. Anyway, while waiting for that I downgraded, and the problem is gone.