Cancel Ability keybind doesn't apply to certain ults + some related UI bugs

[Fergus Bentley]

For reference, my ult keybind is Q and my cancel ability keybind is mouse wheel scroll down.
Ivy, Viscous, Kelvin, McGinnis, and Vindicta all make me press Q to cancel their ults, and my cancel ability keybind doesn't do anything.
Grey Talon has a UI bug where it says "Q detonate" but in reality it uses my cancel ability keybind
For any other hero where the keybind works, the UI says "____ cancel" with no actual keybind listed in the blank area.

 

[Claymeister]

+1, i switched my cancel key to caps lock because some abilities i canceled with spacebar accidentally - would like for it to display as i don't have the muscle memory yet.

Also we could use a grace period when cancelling with ability key - spamming moe key to grab people made me cancel it by accident.