The horribly flawed, dreadful, pointless, universally hated "Export workflow" has completely died. If I try to export something, I just get a blank screen:
...and my activity monitor reports that PPro is doing 0% CPU activity.
I shall modify the project so I can open it in a better, older version of PPro. I (along with every single person who has had the misfortune to encounter the hideous, broken, coded by someone who has no idea of UI/UX new Export Workflow, with exciting features such as Now with more clicks! Totally illogical! Unreliable! Pointless! Bug-ridden!) wish Adobe would listen to its customers, and kill off this absolutely diabolical piece of junk and bring back the much loved, perfectly fine old version. Or maybe someone in Adobe has a vendetta against the company and is trying to drive all its customers to Resolve/Avid/etc?
LOL - to add insult to injury:
I then loaded up the project in the release version of PPro 2022, went to the export screen (it loaded correctly - yay!) then my whole system crashed, due to PPro somehow overloading my Nvidia RTX3090 24GB graphics card!