Eliminated safey alart paint on seat belt fastener

<Not repaired yet, just information>
One more fault information.
fastener paint was eliminated partialy, which is 2nd center.
This paint means alart/caution, so that it is quite important to remain still initial status.
I confirmed that both the fasteners btwn the next was not interfered.

Then in my assumption, it might be happened on inside roof location.

To claim to repair at the next visit dealer.