I have seen listings about stopbar issues in OMDB. Working there I can tell you it is very unsatisfactory for us as well. The *crap* system we have works in an strange way. Once turned off the stopbars relight after 60 secs. instead of relighting after being crossed like in the most other airports across the World (induction circle). It has been addressed and is being dealt with, however you know how quickly certain things go in the middle east
Anyways hope that helps a bit, I know it's not satisfying but crap system = crap results...
cheers
HB-UAE