I have updated my Al Kharj AB in Saudi Arabia scenery, also added an all new Prince Sultans AB. Included will be AI F-16s flying back and forth from OEPS and OE47. My problem is all the aircraft take off and land with no problem from Prince Sultans but over at Al Kharj only the first aircraft will land. After that all aircraft fly the approach and then go around. This is even after the first aircraft is parked. No other aircraft will land after the first. 
I have checked the airport OE47 files with AFX and Airport Design Editor with no faults. Any ideas from anyone. I have worked on this for two days with no resolution.
Thanks in advance.

I have checked the airport OE47 files with AFX and Airport Design Editor with no faults. Any ideas from anyone. I have worked on this for two days with no resolution.
Thanks in advance.