I have just had to revert a client photographer back to a previous version of Photoshop (21.0.3) as the current new version has a bug in the code that allows actions to save open files.
This bug manifests itself when saving multiple versions of files also (i.e. like the actions I write to automatically save a tiff, A3 jpg, A4 jpg of each image). You can tell if your action is failing because of this bug as the error message will give a partially repeated save path in the error dialogue.
The only way to fix this until Adobe does is to revert to a previous version using the creative cloud program.
Be aware this will reset your workspace and not reload your actions so save both before reverting.
Current clients can talk to me if they need any help with this.