Hi,
till now I am not sure when exactly it is happening. I had it now 3 times and I am lvl 10 1/2. So not very often. Could be that is coming after I minimized the game. Or it could also be that this 3 times I got throwed out of the match by default error and reconnected.
Its ruining the match a little bit cause I can see this graphical error nearly trough the whole map 
screenshots:
http://i.imgur.com/zspbpF2.jpg
http://i.imgur.com/mBBiuGW.jpg
http://i.imgur.com/Bb1aafb.jpg
the graphical bug is at the bus station.