Tempo knob assigned - but it goes up and down in fractions?

I’ve managed to assign a controller knob to tempo, however it moves the tempo up in fractions. IE say, 120.37 110.15 97.97 etc etc. How do I set it so it only goes the round numbers?

Sounds like something I might need to fix… but can you post a screen of the binding and its value mapping and I’ll see if can reproduce and/or find a workaround.

Thanks Brad