Annoying rear seatbelt rattling

Has anyone else noticed annoying rattling of the rear seatbelt metal part against the B pillar, 2022 Ioniq 5 Premium UK?

I tend to plug them into the socket when there’s nobody in the back, but it’s annoying having to do that every time after I have a rear passenger, and for them to unplug them when they get in.

Wondering if anyone has noticed this and might have found a better solution.