As soon as I saw 26-36-46, I figured your 32t cog is too big. Not because I know any better, but only because I have a 28-40-48 and it simply doesn't work with a 13-32 rear freewheel, 7-sp.

It works fine with what the OEM bike shipped with, and that's a 13-28. Chain length is much more manageable, too.

I tried the same setup with a Bontrager Race 53/42/30, and the FD cage couldn't handle it, either it was rubbing the bottom of the rear cage bolt on the 30, or it couldn't be raised high enough to get over the 53t ring.

Shimano shipped it 28-40-48 with a 13-28 rear, 3x7 brifters, and I decided to leave well enough alone. So far, so good.