Hi guys,
I'm having a maddening problem with my 747 and 747-8i developed by PMDG.
The problem is that the airplan cannot keep the crz altitude. For example, if the crz altitude is 35000ft, the plane starts to climb and descend around the 35000ft. It goes between 600 and 1200 fts up (35600-36200) and the descend very fast to around 34000ft.
If there is something I can do, please me let me now so I can star flying again this beauty.
Thanks!!