Husqvarna te 449 2011 doing nothing when start

Hi guys.Yesterday after many hours of forest riding, my Husqvarna te 449 2011 byke refuse to start anymore. the byke worked fine untill now. when descending from a hill i turn off the engine and the ignition key. at the bottom of the hill i put ignition and wanted to start from button. Surprize.. nothing happening. on the dashboard there is power, lights, everithing. i made conection between the poles of the starting relay,starter motor was turning but the engine isn't starting. no other ideas at that moment.i was blocked at 19 o'clock in the midlle of nowhere.
after sitting down for 10 minutes i decided to try again. And Surprizeee it started from first.
went home.i stopped and started the bike 20 times i think and it worked ok.
did anyone faced this problem?
or did onyone have a solution or opinion to this problem??

thanks in advance
Tudor