Actions stop working after update to Photoshop 21.1

[Ashan Jayatukkaja]

After updating to 21.1 the actions we run at work to save images in several places locally and on the network stop working when it tries to save a CMYK image on our network.

The error message reads that that file does not exist anymore.

I purged all the caches in photoshop and bridge which did not fix the problem.

Rolling back to photoshop version 21.03 however did fix my problem.

[Michael Bullo]

Did you try resetting the Photoshop preferences?

Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac OS) as you start Photoshop. You are prompted to delete the current settings. The new preferences files are created the next time you start Photoshop.

https://helpx.adobe.com/au/photoshop/using/preferences.html

[Kukurykus]

Could not save... because the file name is not valid when running an action