Hi all, I recently noticed that when my road bike is on the highest gear, that is: 53/11, "one" of my chain links won't glide on the rear (11 teeth) cog smoothly. I mean that particular link just not align, and I. saw it has to "click in rather than glide in. My front chainring is compact Tiagra, while the back is 10 speed 11-30 (Shimano, I think CS4600) cassette. I found out this issue during lubing. Don't notice any noise or anything unusual while riding. My question is: 1) Should I be concern about this issue? I don't have any shifting issue though. 2) Could it be one of the links is bent? If not, what causes it? Thanks in advance for any advice.