Camera bar scratching metal under trackpad

Hi all, I have been noticing for a few months that the camera bar (or camera switches) are scratching the small bit of metal underneath the trackpad when the machine is closed. Has anyone seen something similar to this on their FW13? I have not seen any discussions online about this. Perhaps I am using the wrong key words in my searches.

It seems hard for plastic to be able to scratch aluminum. Those look like some imprints that’ll come off with some aggressive rubbing or isopropyl?
I don’t believe I’ve seen a similar problem before either!

After aggressive scrubbing it came off. So all is good now!