Changing rules resets VPN connections

I have a weird problem. I have VPN traffic flowing and whenever I make an changes on the firewall, Adblock, Web filter etc and I hit save. My VPN gets disconnected and then it reconnects again.

Similar to this old bug http://bugzilla.untangle.com/show_bug.cgi?id=7925

I am using the latest Untangle 10

Any ideas??

Thanks in advance

Cheers