olof
Osprey
My guess would be that by setting up the 3 position switch to include RTH caused the problem, by flipping out of RTH into Atti mode on the same switch is not cancel RTH. On my JR 9503 to cancel RTH I have to switch off RTH (seperate switch) then toggle between any two flight modes (manual,atti,GPS) on my three position switch this cancels RTH and returns control back to the operator.
As I mentioned above, it works fine to use a 3 way switch with F/S, ATTI and GPS. Just switch back to either ATTI or GPS and you get control back. At least this works on my two Nanza MRs.