Poppy Takes zero dmg from Malphit Q in a 1 vs 1 Video included.

The video should be enough of a discreption of the bug.

My only thought is that when Poppy wall slammed mal, Mal's Q somehow went "under?" poppy and then had to back track to her but by that time she leveled and lived? If that is not it happened its still clearly a bug in this case.

Watch poppy's health in the bottom left.