will quicken 2019 download transactions from my bank

I proceeded to delete all of the transactions which of course messes up my other card balances, but then went through my checking account and re-added the transfers. OK time for a large coffee and some work. 5 mins later, it's 'restored' but the issue I described above immediately returned. I tried restoring from backup (the last one was Friday evening) and as soon as it came up, it immediately told me it couldn't find a matching Cloud account and I needed to restore one. OK no problem, I can restore from backup right? Wrong. Somehow those transfers all got transposed to my Amex. Even weirder, every single payment from my checking account had changed from a transfer to simple categorized as 'Credit Card Payment' which is why my checking account balance had not changed, and neither had the balance of those card. On further investigation, I saw that they all mirrored payments to those cards that had actually been made from my checking account. On checking it out, I saw that about 70 or so transactions from 2017 - early 2021 had been added and all of them were transfers to other credit cards (Discover, US Bank, Ikea etc). No other account seemed to have a problem.

Immediately I saw a problem, where my American Express account suddenly went form a balance of a few hundred dollars to over $42,000. I saw they were not and decided it wasn't important, so went to my desktop version again and hit update to sync across some edits I'd made on some latest downloads. It started yesterday when I opened Quicken on the Web (something I rarely do and will never do again) to check to see if my Investment Accounts were syncing there, as they're not on the Mobile App.

I'm on Quicken Mac 6.5.1 running Monterey 12.1 on an Mac M1 Max. I'm not sure how I'd describe a perfect Sunday, but it definitely would not involve spending 6 hours trying to figure out how Quicken Cloud broke my data.

Will quicken 2019 download transactions from my bank