7.3.6 kang bug?

Dark_hoods

i put a question mark in the title because im not entirely sure if this is a bug or ability accuracy reduction messing things up,

i put kang into time collapse and he just wasnt stunned? the passive was still on him but he just didnt get stunned for some reason

heres a video showing the bug
https://www.youtube.com/watch?v=IdXNyRfC-WI