Thanks for bringing this to our attention, @abides.

I appreciate you manually downloading the updates to get your bank transactions to show up.

Let's try to log in to your bank's website. This is to make sure if their service is working properly, and isn't under system maintenance. 

If everything works in their end, please wait 2-3 hours and try updating your bank. 

If you get the same result, I suggest to manually bring in transactions via WebConnect. You can log in to your bank, then save files as CSV, OFX, QFX, or QBO to your computer. Then, sign in to QBO and upload the file. 

I also recommend contacting our QuickBooks Online care team for further investigation. They're equipped with tools to help identify the root cause of the issue.

Let me know how the call goes by adding a comment to the thread and I'll get back to you @abides.