I'm a newbie trying to learn and have run into an interesting issue just don't know what is causing it. When I fly the P3 pro in the P mode no issues . I can control the copter horizizontaly with no issues even when battery level is around 28%. I have my battery alert set at 30%.When I fly the P3 pro in intelligent mode F in Home Lock mode it flys fine until about 28% battery left . Luckily at about 30% battery life left I had the copter hovering about 4 meters from my position( also the home point position) when I tried to bring the copter closer to me, pitch backwards. , right control lever down, the copter would not come any closer. So I had to land it there. All other controls up, down, yaw left, yaw right and pitch forward. Could this be a battery issue? This is the second time this happens. Any ideas or suggestions would be greatly appreciated. I'm wondering if I'm dooing something wrong??