Just got my Mavic Pro Platinum a few days ago. Flew it for the first time yesterday, and had mostly good video transmission all day. Today, the first few flights I would have video on my phone during takeoff, and as soon as I ascended, it lost video. I landed and tried rebooting everything, and now I'm not getting video at all. I've tried deleting and reinstalling DJI GO 4, no luck. Any pointers?