Always hovered around the forums but never posted before, so here goes. So, I've been having an odd problem as of late. When using the REX weather engine, or even the default MSFSX engine, the winds change their direction between 8,000 and 15,000 feet. It doesn't happen with any other plane, just the NGX. The only option is to have a completely clear sky with no winds at all, because regardless of speed, the wind heading bug on the EFIS spins in little circles like mad. Frankly, I'm at a loss and curious if anyone else experiences this phenomenon too.