Just upgraded from QB2015 to QB2019 since QBO files would not import!

After upgrade they still will not import.

I modified the checking account QBO file changing the <INTU.BID> from 10898 to 2430.

The checking account QBO file imported without errors.

I made the same change to the Credit Card QBO file which brought up the select account dialog and after selecting the existing account the Error Code:OL-222 was displayed.

I also tried the IIF download and that file was all errors.