irst Solo flight on a Prime Day pack (coming from Iris+), iOS v9.3.2 (jb), GP H3B+
Some strangeness I noticed was that it wanted a second level calibration after startup (had already run a calibration at home after the 2.4.2 update), and the GoPro feed was on initially auto-on but then went off after the level calibration and had to reset the camera type config.
I did notice this post in the 2.4.2 thread and have to wonder if there might be another issue most of us have not discovered.