Check the battery terminals and solenoid connections. Nip them all up a bit tighter with a spanner. It's not uncommon on all bikes to have this type of problem at some time.
It can also be a sign of a weak battery, especially if one has just been charging for a long time and getting hot, like on a trip abroad. The bike is still a bit new for a battery problem so I would go down the connection check route first.
Pull my finger