I feel your pain. Since QuickBooks updated the bank feed system a few months ago, my Bank of America and Chase accounts routinely download duplicate transactions. American Express has not been updated, and it works flawlessly.
When Quickbooks updated the bank feeds they removed functionality. You cannot download all for a bank, which was a nice feature to have when you have multiple accounts at a bank (employee cards).
Bank of America is the worst offender. Almost every time I start to update I check which residual transactions are there, which are always duplicates, Ignore All, and then download.
This is like when a company says, "To serve you better, we are increasing your fees." Oh, wait, Quickbooks did that this year. Is it too much to ask that the new system works?
