P: Open Commands in Actions not working

Any action with an "Open" command inserted into it gives an error at the "Open" command when played in PS CC 2020. The error says "Could not complete the command because of a program error." It even occurs if I delete the old command and insert a new one using PS 2020. I can work around it by closing the error message, opening the file manually and then skipping to the next step in my action, but this is hell on workflow. I have tried it on a Mac and a PC with the same results. Does anyone know what is causing this bug or how to fix it?