Unable to delete alias in iRedAdmin-Pro-MySQL 1.9.2

==== Required information ====
- iRedMail version: 1.9.2
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 14.04
- Related log if you're reporting an issue:
====

Hi,

I am unable to delete Alias in the new version in IredAdmin-Pro. It says that it deletes but the alias is still there. I had to remove alias via phpMyAdmin.