This is incredibly important to fix for the character, this post from October of last year even points it out, it was added, it was good, now on the major map update its gone. If I were a betting man, I'd say that this change to add the ability-specific cancels was made after the new map started...
I'd like to bump this up as it still has not been resolved after several minor updates via steam.
Even on character-specific keybind menus it can't work, we NEED this to be fixed for Kelvin. His utility is way down, it's effectively a nerf to the character.
Changing the 'cancel ability' keybind to go off of each ability's activation keybind is missing in the new update, I can't seem to think of why this would be intentional?
I see now this bug has been widely reported, I was trying to spectate my friend and since his game had just started, I canceled it and went to go into my own game. Loaded in, the spectating loaded in and overlapped my own game, and I got the temp ban for leaving.
Tonight's my only night off...