Thankyou for your response. Well the issue is not with the 3D mode. The issue is i am not able to fly my drone rather the drone does not initialise to take off when i use a flight plan of KML file. It says "unable to start mission" , though if i plan a manual flight in my Ipad, the drone initialises and maps the area.
I have been following the practice of rebooting everything - drone, RC, mobile device, and hard-close DD app as well as DJI go. Yet the result is "unable to start mission".
I shall go through the link you have shared with me but please do get back to me on the issue of KML file/unable to start mission.
Thankyou for your mail. Looking forward to hearing from you.