It's May 2025 and this problem still exists.  Is there any proposed resolution to this problem? 

I've noticed that RBC has a "Manage authorized applications" section now under Security>Enhanced Security.  But going into this section doesn't show anything when using Quickbooks Online. 

Currently, we cannot use syncing with RBC 2FA on.  It will only sync on the 1st attempt.  I think the salt on the wound is the fact that Quickbooks is a featured partner on the RBC site.  Meanwhile, neither service properly talks to each other with 2FA on.  Quickbooks Online these days feels like a deprecated piece of software.  There have been ZERO product improvements for years.  It still does not even match the old desktop version in terms of features and many of us, the customers, are completely ignored.