Is it ok? In common port side boarding is in use.
This problem doesn't have anything to do with GSX, which doesn't control where the jetways go, and can't even know where they have docked, see this post about all the problems of the default jetway animation system, which has been reported for more than a year ago to Asobo, but hasn't been fixed:
https://www.fsdreamteam.com/forum/index.php/topic,26965.msg176552.html#msg176552