Front turn signals not working

So, here is the situation: 69' Barracuda, all new dash harness, new turn signal switch. When I put the turn signals on, the rear ones flash fine, the front ones do not light up at all (on either side). Same with the hazard lights - rear work, front do not. What's really confusing me, though, is that the parking lights in front work fine, so I don't think it is the wires going from the bulkhead to the parking lights. According to the schematic, the power to the parking lights runs on the same wires that power the signals, at least from the bulkhead forward.

I have pulled the steering wheel and checked the connections at the signal switch and have continuity from the signal switch to the harness connection coming out of the steering wheel. I also replaced the flasher, just in case, but no change. Any suggestions of what to check next, and what I'm looking for? Would a bad hazard switch (on the dash) cause the fronts to not work even though the rears and the parking lights work?

Any suggestions greatly appreciated!