Hi Guys, This is our first post here, sadly due to a tech issue and crash. Would love to get some possible ideas as to why this happened. details below. Cinestar 8, mikrokopter Bl Ctrl V3.5, Fl Ctrl 2.5, Navi Ctrl 2.0, Movi M10, Nikon D750 17 - 35 lens FC Communication Failure. Yesterday we crashed. In the morning we had had two good flights with no problems to speak of. In the afternoon we returned to get some more still shots. The Weather was clear, wind 15 - 20km/hr. As you will see from the GPX file the flight started well. When GPS hold was applied Matilda (thats what we call our cinestar 8) circled, as she does some times but sorted herself fairly quickly. GPS hold was disengaged and Alt hold applied then things went wrong. the pilot tried to engage Carefree to bring her back but no response, As you will see from the GPX file (entry 126 on grid view) Carefree is applied and then the stick inputs freeze. From that point on the pilot has no control. A few seconds later the FC error appears. Control was never regained and she drifted inland till her battery died. This morning we reconnected Matilda and found she had no errors and (according to Mikrokopter tool) appears to be in a perfect bill of health. So what happened? I have read that a user in the USA had FC issues and intermittent control due possibly to a rabbit ear receiver issue but our issue seems to be related to the Care Free switch. This is a concern as we have been unable to find the cause and obviously want to ensure this does not happen again. Our other question is this. Why did the GPS failsafe not take over when we lost control. Should she not have returned home? The other question is why did she only record a 2 minute flight when she flew for well over this length of time?