I have an Action made on the 2018 version and it is no longer compatible for the current version. This action involves a lot and would be a total shame to have to remake.
- I have tried downloading an older installer and it is not compatible with my current version of Mac OSX. I understand I can revert to an older version of OSX as well but that would just be rediculous.
Interesting. I just loaded actions created in CS6 into latest Photoshop. No problem, no warning. I am on Windows but that should not be in question, actions works on both systems without any problem. Can you upload actions somewhere to test them? Perhaps that is Mac issue with newest OS?