Roundcube can't login to newest mailboxes

I can't login into my newest mailboxes trought roundcube because authentication fail.
All old mailboxes works normally in roundcube.
I can login normally through other clients like thunderbird to both old and new mailboxes.
I don't know exactly when the problem started.

This is my system:
CentOS 6.10
CWP 0.9.8.825
MySQL 5.6.47
Roundcube 1.2.3 (also tested with 1.5)
archive 2.4
cwpautologon -
filesystem_attachments 1.0
jqueryui 1.10.4
managesieve 8.6
password 4.1
zipdownload 3.1

What I see in /var/log/dovecot-info.log when I use $config['imap_auth_type']=null; is something like:

Code: [Select]

Nov 20 13:29:18 imap-login: Info: Disconnected (auth failed, 1 attempts): user=<mailbox@test.it>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, securedIf I use $config ['imap_auth_type']='PLAIN'; for some odd reason I get:

Code: [Select]

Nov 20 13:28:18 imap-login: Info: Login: user=<mailbox@test.it>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=25268, secured
Nov 20 13:28:18 imap (mailbox@test.it): Info: Disconnected: Logged out bytes=29/405but the result does not change, the authentication fails.

what could I do?
thanks

it seem that with the latest roudcube version it works, but I had to manualy set a default value for alias column in user table of roundcube to avoid sql insert error on first time user login. Probably this is due to some problems that I had in upgrading roundcube, I will check this another time