G450 Breathing

On the last two accasions I've been out on my return I have noticed a small, light misting of oil just above the gear shifter on the casing.

On the top of the crankcase there is a small whole with what looks like a ball bearing in it, is this a breather, am I paranoid, could it be coming from anywhere else.

Bikes done less than 10 hours to date.

Cheers

The one at the top? Mine is dry however I have had oil drip out of the airbox before at the join, it runs down the frame and drips on the side and floor, have you checked your airbox?

No, I'll check that next.