heavy attack from Small champions damage is dealt back to us!!

Karinshi

it's clearly said in the node description that Small champions' heavy attack can't be glanced!!!!
so why I'm getting the damage back!!?
iPad mini 4 iOS 11.4 with the latest game version
p.s. I think it's only related to the first heavy attack! but add 10 poise charges with Spark and you will deal to yourself +18k damage!!!!
here are some proofs:







I'm sure it won't be fixed before I could finish it, but it's for fellow players who try it
thanks

Karinshi

after checking the event thread, it appears to be related to all sizes!! not only small champions
@Kabam Miike @Kabam Rose @Kabam Vydious