Hello and thanks for reaching out!
We’ve been tracking reports of this, though haven’t been able to identify any issues so far, and most cases seem to be resolvable by relogging or looting pending postmaster mails.
We’ll continue to keep an eye on it though, and if you notice any additional details to share, please do send them along in a bug report.
For more info and future updates in case we identify any issues, please keep an eye on this page: