I was recently flying my Mavic Pro on a day with high humidity. It worked fine one day, then the next, the camera couldn't be controlled, couldn't focus, and would go black every 3 seconds or so. I tested on 2 different phones including an iPhone, and no change. A few days later, I tried a new SD card... and problem fixed! I put the original SD in, and the problems came back. This seems strange to me... how an SD card could affect how the actual camera functions? The SD works fine in my computer. I'm curious if any else has had this issue? It was a 64 GB Sandisk Ultra.