Rainloop issue since update to 1.2.7

Hello,

Not sure if it's the update to 1.2.7 or the one to 1.2.6 as I made them in a short time. It was 1.2.2 before.

So now it's 1.2.7 on Ubuntu 14.04

FRONTEND_SERVER = nginx
SQL_SERVER = mysql_5.5
PO_SERVER = dovecot
NAMED_SERVER = bind
HTTPD_SERVER = apache_itk
FTPD_SERVER = proftpd
MTA_SERVER = postfix

Since this the session to rainloop always close by itself and it doesn't store my preferences (languages, theme, identities....)

If you have ideas where to look.

The installed plugins are
AdminerSQL
ClamAV
Mailgraph (Disabled as no version available for the new system)
Monitorix
OpenDKIM
PanelRedirect
Postgrey
RoundcubePlugins
ServerDefaultPage
SpamAssassin

As written in the subject and the text, it has been upgraded to 1.2.7 ;

## Version variables
Version = 1.2.7

Yes indeed.
And the session doesn't stay open.
I use to have a webmail open all the day, and here I always have to reconnect.

How do you feel as "normal" ?
I'm not talking to "loosing session during upgrade" but "loosing session all the time SINCE the upgrade" When I go back to my tab with the webmail I left open, I'm on the login screen, not on the mail screen anymore....
This makes the service not usable anymore....

I didn't update the plugins since I have updated I-mscp to 1.2.2 and it was in February. As the plugins system changed I had to update the plugin in the same time as the core. I don't know if it's the update of rain loop or update of imscp. But I can create a mail account t if you want to see the results.