I know about that.
When flying with my hexa with 8 m/sec i use shutter speed 1/1000 or 1/1250.
As i wrote at the begging i also could not have events from reach m+ without having the internal flash extended.
But then i found this thread in the forum:
So i used sandpaper in the hotshoe and now i have events.
But as many searches i ve done none speak about flash settings with any camera.
