In the previous DIRT there was H pattern support, in fact it allowed H pattern with or without autoclutch, but it was well hidden. Is that the case here as well? I can't drive the lancia Fulvia with paddles. It's a crime against humanity.
Ye. That's a random bug that happens from time to time. Only way to fix that, is to choose controller presets, and choose you controller there (with the H-Shifter + Clutch assigned in preferences). Now you will have the missing stuff assigned.