Stalling engine
 

Hi!
I'm having a strange problem with my engin stalling when shifting from 4:th to fifty gear but only on higher revs 4500-5000. When this happens the engine lights does not turn on it's almost as the bike does not understand that the engine has stopped. So far it has restarted immediately when I have released the clutch handel. The bike , Xt660za 2015, still has it's warranty so thats a good thing, but when i booked an appointment describing my problem the meccanic looked quite puzzeled....
Has anyone of you had this problem? Thankful for any input!
Cheers! / Dan in Sweden