My mavic 2 pro will take off and operate normally in half the locations i want it to. the other areas, it will disconnect after flying for under a minute or just wont connect to the app so i cant even fly the thing. last flight the app says 'disconnected' and the drone does the return to home thing. What am i doing wrong? is there anything i should be aware of that will show me that my drone cant take off in certain areas? none are in nfz. or is the drone broken? Any help would be great, thanks!