Reply to Vci-100 left cue button not working!

Hey guys,
I recently put the newest mapping onto traktor for my vci-100, I haven't put the new firmware on yet. It was really glitchy so I changed it back to the old mapping and my cue button stopping working so I had to map it to my slice button, the cue led still works as when I press slice it lights up. I hadn't moved it around or anything so I don't know how it could've happened.
Any help would be appreciated or any places in Australia I could get it looked at, more specifically Melbourne.

Cheers
Kenny