What model GoPro do you have and what firmware are you running? For all intents and purposes, and no matter what you've read about full GP compatibility, the most 3DR friendly GP, with the max amount of things that go right, is GPH4 Black running FW v 3.0. FW 4.0 defeats auto-on with Solo - and has a few other issues, as well.
I am running a GoPro hero 4 black and have reverted to fw v 3.0
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