I have the same exact problem. Duplicate transaction appear, just moments after they were already reconciled. And I also bank with chase.
Was your issue resolved?
Recently Chase rolled out a new connection platform for online banking. I received an email requiring me to adopt this new system interface, which forced me to start using the Advanced Bank Feeds option, verses the Classic Mode I used prior. Never had this issue before I updated to their new platform.
This problem adds a LOT of wasted time to reconciling my accounts, as it takes twice as long to go through each transaction to weed out the duplicates. Need a solution.
QB desktop 2020
