I am having trouble with the home arrow on my ST16 controller not pointing in the direction my drone is facing i flew it yesterday after updating the firmware with the latest updates,did all the usual callabrations but when i flew i noticed the green arrow was not pointing the way the drone was facing,i hovered the H in font of me had the home arrow pointing directly at me and the drone was pointing to the right (as i'm looking at it) by around 30-40 degrees when i turned the H to face me directly the arrow then pointed left of me? can anyone shed any light on this problem for me and offer any advice on how i might solve this problem.Thanks in advance and safe flying everyone.Ged