Bug with email login in rainloop/snappy

There seems to be some problem with the new installations related to webmail.
Restored cpanel accounts on the server cannot log in to the email, it reports authentication error.
I can only get it working again, creating a bank for the rainloop/snappy and adjusting it in mysql. Until this is done, the restored emails generate authentication error. I did installs yesterday and today and both happen the same. Has anyone gone through something similar?