Shifting problem

[KnottedYet]

The crank teeth look fine - at least to my inexperienced eye they do.

I did note that for some reason the chain in the middle chain ring does rub the side of the FD quite a lot. I also noticed this happening whether I trimmed it or not. Perhaps it still isn't adjusted quite right?

Try moving it more. Two smidgens. Three smidgens. Four smidgens. Move the shifter enough that the cage is centered relative to the chain. (trimming it means centering it or at least moving it enough that the chain isn't hitting the side plates of the der cage) Play with it. Move the cage so the chain touches one side, then move the cage so it touches the other side. Get a feel for just how much you can move that cage within the arc around the middle chainring without actually shifting the chain to the next ring.

It's like doing the waltz with your shifter, derailleur, chainrings, and chain. Find their happy place, where they work together and keep the beat.

It could also be that the cage is set at a sharp angle to the chain line where you just can't trim it.

If you can't figure it out and do take it to the LBS, have them show you exactly what is going on and exactly how to fix it. Knowledge is power!