You really need to remove the hub and clean/lubricate the outer surface of the hub and the swingarm where the hub sits with anti-sieze.
I would also service the hub while it is out.Seems like you are dealing with a bit of corrosion there.
You don't want your hub to look like this-
Mitchy, I have been reading your hub thread with great interest and alarm, as a fairly newcomer to MV I was not aware of the hub problem. If my hub is damaged at a total bike mileage of 1800 (dry miles) I think I will opt for one of yours instead of the OEM. Without going through the 75 pages of your hub article could you please advise where they can be sourced in the UK.
2016 F4 RR mapped with ECU Studio
2017 Aprilia Tuono Factory
2019 F4 RC