Hi. I have had GPS lost and Atti mode engaged a couple of times during flights with DJI GO4 recently on my P4P, which i have never struck before. It hasn't hindered Deploy flights yet but it has struck me as strange and out of the norm. It finds a good GPS and only after take off and flying does it drop out. Recently had it away to china on warranty fix of gimble motors and cord and wondered if it was related, but maybe not.