I was cutting some masked plywood in lots of little pieces, and some of the masking lifted up because of the air assist (and because it was old and not well applied). Bits of it ended up distributed all around inside the GF.
After the cut finished, I very gently tease the piece off the pulley with some tweezers. No apparent harm done, but the result might have been unfortunate, especially if I hadn’t noticed it early on.
So just a reminder: when there’s stuff flying around the inside of your GF, watch where it goes…