"Due to account discrepancies..." can't load save

Hi all,

I know the patches have broken old saves, but this particular message I have not seen in other forums. “Due to account discrepancies, the save file is no longer available.”

Started up AOE4 via Xbox game pass around the new year. Cancelled Xbox game pass after first couple of months. Cut to this month and I buy it on Steam because it was on sale.

Get this error. So started on Xbox app, and picked up much later on Steam. Shouldn’t that be fine? It sees the save files, but doesn’t let me open them