Hello! Ataru Form stopped working when I hit an NPC. When I just started playing, I always had an Ataru Form buff, but now there is no buff = (What could be the problem?

The buff icons for forms, stances, gas cylinders and cells have been hidden for a while now because the forms themselves are now passives and forced by your current Discipline. If you last played before that change, you'll recall that it was possible and occasionally useful to choose a mismatched form (etc.), but because it was more common for the mismatched form to be worse than the right one, they changed it so you can't choose a wrong one.

The buff icons for forms, stances, gas cylinders and cells have been hidden for a while now because the forms themselves are now passives and forced by your current Discipline. If you last played before that change, you'll recall that it was possible and occasionally useful to choose a mismatched form (etc.), but because it was more common for the mismatched form to be worse than the right one, they changed it so you can't choose a wrong one.

 

Thank! Now everything is clear.