Ring Group - Prefix Name & Number - Not Saving

Hey Guys,

I'm running FusionPBX 4.4 and I've just setup a few ring groups and trying to add a "Prefix Name" however when I add a name and press Save the name just disappears and I can see that it's not being added to the DB. The same thing happens with the "Prefix Number", all other fields the the ring group seem to be working correctly. I've also upgraded to the latest master branch and still have the same issue. Does anybody else seem to having the same issue or maybe point me in the right direction if I maybe missing something. Thanks in advance.