This just happened to me when I came back from bike week in mid Octorber, Bike started and ran flawless in Daytona, loaded it up and came home. When I unloaded the bike from the trailer and turned the key on, all I got was 1 flash of the right turn signal, I tried it 6-8 times and sometimes the turn signal would flash sometimes not. So I thought dead battery, tried to jump and nothing. If I jiggled the key, sometimes I could see the turn signal flash. So I thought key switch needs replaced. Pushed it in the garage and parked it. 3 hrs later I came out in the garage to go somewhere and I thought I would try the key, guess what, everything worked and it fired right up, HMMMM.
I since have replaced the key switch anyway, and I haven't experienced it again, YET.:willy_nilly: