Today I tried updating my 2022 Pro Series file with a 2021 QuickBooks Accountants Desktop company file and received the same error message. I am in single user mode also. I have updated my QuickBooks company file with the same error message being received. Have you tried updating your -to-QuickBooks 2022 yet? The reason I ask is because when I try to export from QuickBooks, I does show me that i can import to Pro series 2021. 

This should not be this hard to accomplish.