I have a 3+ black.
Have everything up to date.
Probably normal but I have to turn the Gopro on manually.
It does not turn on from the Solo or powering up the solo.
Red light comes on solid when Solo is powered up I guess that just means charging.
Have to pop the power button on the gopro manually once then I see the video feed in the solo app.
I've also tested the HDMI feed from the controller *works great* and I'll use that with my ground station soon.
Starting and stopping in my case recording works from the android app.
We lost the 3+ Black powering on with Solo after the last update from GoPro. Since they won't be giving us any more 3+ Black updates, we will just have to live with it. Other than that, it works fine.