The little tab, that should normally line up behind the crank arm, apparently designed to stop the chain from getting stuck behind the crank arm on an overshift (which theoretically shouldn't ever happen anyway, since the FD limit screw will be set correctly haha), cannot line up behind the cranks I have, probably because they're not designed to go together. It's all 135BCD, but the new chainring is obviously for a newer (at least, different) crankset.

My question: is this any serious technical problem, or more-or-less a cosmetic issue? Would it bother you? Discuss

(btw, the tab on the outer chainring is directly above the chainring mounting bolt at 11 o'clock, between "10 SPEED" and "CAMPAGNOLO".)