Hi Hel1aviation, i have the same problem, i dont know why happens
but i can help you to solution... to solve this problem.
You need to do a reboot of sistem, try at start to hold and push enter and on buttons or maybe quit (i dont remember)...
after this put the gps to caught signal (its probably that takes a bit longer)...
A have this problems to times (but i think that this is only a light solution)..
Good Look!!! and safety flights