Sorry, it's a 105 10sp FD. 5700-series I think? FSA Vero 50/34 crankset. Shimano 10sp chain. All the stock stuff on this 2011 model Felt Z85.

And yes I'm pretty sure it only happens when there's a chain outer link sitting over that pin. Doesn't happen if there's an inner link there. I did notice how on most downshifts the chain lifts up off the teeth. But in this one spot it seems like it doesn't.

Oh how I wish I could afford an Ultegra crankset.