Can’t open project saved from beta in premiere stable

Hey everyone I am currently updated to the most current version of premiere pro (beta) and premier pro stable.  I was lured to the beta because of the new AI features but now want to share the edit file with a premiere stable user and keep getting the message that it can't open because it's "damaged or contains outdated elements".  I've tried to do all of the downgrade method and exporting the xml and none are working (except the xml gives me a severely truncated version that is unusable).  I always assumed that I could return to premiere stable whenever I wanted.  Is there anything I can do that I'm not thinking of?  Thanks in advance.