I have installed recently updated 737-900 and was using earlier versions without any issues. With new update, flying has become tricky. Before update, I could turn knobs either increase or decrease the speed, altitude, vertical speed etc. Now with the update, I could increase the speed from 100 (default) to any value or even decrease while initially climbing, similarly, it happens with altitude or Vertical speed etc but after some altitude climb, while I try to climb higher the altitude shown above the knob concerned, is actually decreasing with the arrow indicator is showing decreasing indication even while I keep on trying to turn knob in increasing direction. I uninstalled 737-900 and reinstalled, this issue keeps on surfacing. This happens with vertical speed also while in flight. Please suggest any workaround