Could use some feedback and insights, thank you. Attempted to use Drone to photograph and video the upper edge and roof of a building for a client. Received approved clearances, etc and the Phantom 4 would only reach a height of 37 feet and stopped, all (4) four red lights on. Could fly horizontally, no problem but not vertically. Would go no further in height. Top of building is 100 feet. Walked one block to a park and the Drone rose to 150 feet, no problem. What would be preventing the Drone from reaching the 100 feet height at the building? Appreciate the help!