Thanks for your report ! Same thing here ! Sometimes, take off experience is very good, and it is crashing down at flare. I noticed that after un hour of flight the problem begins to happen, with small stutering appearing and then going bad. Sometimes it recovers during the approach, but on the runway it is not acceptable, still you completely stop.
I will try tonight with a setting I did not touch for now : It is in the advanced power management, it seems that there is a “20 minutes” set to power the hard disk… Could be a possibility. I will check it…