Indeed I have - No weather whatsoever and still get the same result

I had this same exact issue in the video... I actually returned the plane because of it. Like you, I tried all manner of combinations for weather, loading, altitude, airspeed, FSUIPC etc, even tried my hand at some CFG edits, but it never went away. Would love to hear of any progress towards a fix. It was an otherwise awesome plane and I look forward to owning it again when this gets solved.