Possible viper glitch

So yesterday I was playing with my buddy online I was using viper and he was using shuma at the time he has a habit of not blocking when ever he lvl 3 x factors so i decided to use vipers special thunder knuckle to finish the match what happened made me go wtf? Apparently if you hit shuma with special thunder knuckle he does a hard knock down instead of crumple can anyone test this for me and make a vid i dont have anything with decent quality to make it. I also tested this on jill cuz i thought it might have to do with the fact that shuma is dlc but it crumples for jill just not shuma.

Yeah, we were just talking about that in the Viper discussion thread, Shuma Gorath has no crumple animation, he still stays immobile for the same period of time, but her requires you to either omit the move altogether or EX Seismo cancel.

i stumbled upon that wen shuma came out lol

lol its not a glitch ( i dont think )
thats just how shuma crumbles, u can still hit him normally, becuz hes not actually knocked down, u can do a normal attack and start a combo

his crumble animation is just him falling out (same animation occurs wen u focus attack him)

sounds interesting. Will try it out on the tentacled one.