I check the file to make sure it is a QBO file. yes, it is. check to see if CitiBank support Quickbooks. yes, change the bank fee mode to classic mode. check the file to make sure it is a QBO file? yes, it is. check to see if CitiBank support Quickbooks. yes change the bank fee mode to classic mode. did a verify data, all so rebuild data? all O. Quickbooks will open too. when I get import new transactions now. say ok. QuickBooks shut down. and no error is given out.
Since you've already verified that the file was saved in the QuickBooks folder, and the bank is supported by QuickBooks. Also, you've performed troubleshooting, and all fail. I recommend reaching out to our customer support team. This way, we'll be able to pull up your account in a secure session and verify the underlying issue.
I want to make sure your issue gets prioritized and addressed on time. I'll be providing this resource for the support hours. It contains the time on when the support is available, depending on your type of subscription. Just go to the QuickBooks section of this article for more info: Contact QBO support.