Reconstruction issues

Hi everyone,

I am new user to ContextCupture and I am working on a pilot project for a Telecommunication company in my country. We use a DJI Mavic Pro UAV for the video capture of a telecommunication antenna at 3840x2160 dpi in D-Cinelike mode. The final capture is a 336 sec video around the antenna tower following a helix way  I tried several times to do the AT and the reconstruction of the antenna. However, the produced result is part of the around scenery or something abstract.I believe that the problem has to do with the sensor size and the focal length numbers set in CC. According to UAV specs these numbers should be respectivly 7,66 mm and 28 mm but I am not sure.

We are a little bit lost here and some help would be appreciated. Thanks.