I have also been having Scotiabank sync problems since 2FA was introduced.  unable to use app to view transactions and update.  So far I have had to use  a PC to update scotiaonline transactions in quickbooks online, with my phone handy to authenticate the update into the PC.  Can't have my bookkeeper do update as as my scotiabank app has to use face id to authenticate that it is me asking for the update.  

I miss being able to do updates on phone app......