Project will not load - no load past missing ports dialog

I’ve had this this happen on a few projects now on 9.5.41…

Project fully loads but brings up the missing ports dialog and it wont let me click ok or cancel on the dialog. Can’t get into the project

Scary stuff. I’m having to dig back into .bak files and lose more recent work.

Anyone else have anything similar?

I cant open the project either with C10.0.10 on PC …

Interestingly though if I open the project on my Macbook Pro running C10 it will load. I resaved it. Went back to the studio Windows 10 PC and I get the missing ports dialog but the project opens.

If I didnt own a Mac though I’d be in trouble!