Bug with email login in rainloop/snappy

Hello.
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?