Hello @fsecor, Thank you for contacting the Quicken Community, though I do apologize that you are also experiencing this error. First, I suggest creating a test file and adding the M&T Bank account(s) to see if it produces the same error message. It is recommended to save a backup before proceeding with troubleshooting steps in the event that you would like to return to your original starting position. Below are instructions on how to create a test file:
After adding accounts, see if you are experiencing the same problems in this test file.
Please let me know how this goes, I look forward to hearing your response.