I had some problem with my HBP. It look like it was because the power had some problem reaching is target...
In fact, I have a HBP from Makergear and it's cool it can be remove but that can also, in some case (like now), result on some bad connection.
So now, I connected the power directly to the HBP, no more from the screws.
With that, Now I can reach my target faster and it keep it .
Wireless can be good, but never as fast as a Wire ;-)