Tassadar’s level 13 Shadow Walk talent seems to be malfunctioning for me in certain circumstances in quick match games. It works normally sometimes–he gets stealth, unrevealable, movement speed and armor, and a little progress bar appears above his head to show the 1.5 second duration, then the cooldown timer appears at 58 seconds. But other times (it seems like especially when I take damage) the effect ends immediately, in a split second, and the cooldown timer appears at a full 60 seconds. Both normal and the seemingly cancelled Shadow Walks have happened in the course of the same game.
Nothing in the tooltip suggests to me that taking damage or being stunned or anything other than dying should cancel the effect of Shadow Walk early. Am I missing something?