AE Beta files incompatible with AE (Windows & Mac)

Hi @JointyJr,

Yes, the project files created with the latest Beta versions are incompatible with the 22.x version unless explicitly saved with the File > Save As > Save a copy as v22/v18. Please see this announcement for more details: https://community.adobe.com/t5/after-effects-beta-discussions/announcement-after-effects-23-0-and-project-file-compatibility/td-p/13108013 .

Thanks for using the After Effects (Beta),

- John, After Effects Engineering Team