Some of the guys can find nuetral very easy but I have to work for it.
You may be in the same boat so
Without it running I have to move the bike forward to take any of the weight off the gears then it will go into nuetral easy. When running I just let out the clutch a little the bike moves forward and I grab the brake and then shift into nuetral.
You were in gear so the Sidestand safety killed the motor.
When you turn the ignition on and the gauges sweep and the lights light up that is a test for all the bulbs.
Ride it for a while and keep an eye on the light if it continues to malfunction then you will have to clean the gear position switch (gps)
Hth herman