Yes, this worked! I tried a toothbrush several times, looked in it, couldn’t see anything, finally turned it off and used an metal needle-like dental pick, carefully, because I didn’t have any kind of tooth pick. This might not be smart, but it did work, and this big hunk of link came out that was otherwise invisible. Now fits super-snugly again. NEVER would have guessed this was the cause. I do carry it in my pocket.