Runways and buildings out of alignment in Orbx EU

I've been using Orbx England for some time now to fly GA and not had any issues however now that I am playing with larger aircraft I am experiencing problems.  I load the default 737 and place it at a gate and as soon as it's loaded it either crashes or places  the aircraft away from the gate, sometimes on the wrong side of the building.  I've tried small, medium and heavy gates at both Heathrow and Gatwick and numerous gates.  When I use the default scenery it seems OK.

Alan