OK, finally got the problem fixed. I am not sure if this is what was causing it for anyone else, but here is what worked for me:

The reason the accounts in QBO were not syncing with BB&T was because BB&T online had me set up as a sub-user, not the […]

Resolution for 'BBT issue: 'Is anyone else having problems syncing BB&T accounts? I have gotten error message 324 (We can’t find this account at your bank) for the past 2 days, but only on the BB&T accounts. My account number and login info hasn’t changed. I have re-signed in, and get a notice that the accounts are connected and that transactions are being downloaded, but once I am back on the Banking screen there are no new transactions and the 324 error is still there.' available: Yes.

The BBT issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the BBT issue yourself by looking for a resolution described in the article. If it is a complex BBT issue or you are unable to solve the issue, you may contact us by clicking here or by using other BBT support options.

For more information about resolving issues related to BBT in Quickbooks/QBO or to get support for the issue 'Is anyone else having problems syncing BB&T accounts? I have gotten error message 324 (We can’t find this account at your bank) for the past 2 days, but only on the BB&T accounts. My account number and login info hasn’t changed. I have re-signed in, and get a notice that the accounts are connected and that transactions are being downloaded, but once I am back on the Banking screen there are no new transactions and the 324 error is still there.', click the link below: