The worst thing anyone can do when losing GPS is to trigger RTH. In essence, you are telling the FC to "Go Home". With no GPS is does not know where "Home" is, so where should it go? I'm sorry folks, but if people are not smart enough to understand that a GPS governed function does not function when there is no GPS the H is much smarter than they are. The H will at least try to stay in the air but the users seem to want to drive it away. When GPS fails the FC defaults to a mode similar to Angle mode and the user has to fly it. It will maintain altitude but the H has absolutely no clue where it is at. It's up to the user to know where their H is and fly it back to themselves or land it in place.