OK I FINALLY figured this out! It seems that several Check records in the BR_Transaction file had Field 4 Transaction Date assigned. Because this field was not blank, while in the Reconcile Bank task when you tried to clear it you got that ""This field can only be set for deposits/adjustments"" message. Apparently checks can't have a transaction date. Not every check had a transaction date ... it was a random few .. but once I cleared that field those checks could then be cleared. Don't know how or why some records had a transaction date, but they were converted records from before the upgrade. Hopefully no new Check transactions update to that field.