Diablo Game Questions BUG- Character dying in solo game with game menu open

Has anyone else noticed that the pause appears to be inconsistently applied? I paused to send someone a message, and died while paused.

This seemed weird, so I tried to reproduce it, and about 4/5 times in combat, the pause actually works, but sometimes after you pause you can see your health globe is still moving up and down as you're healing and taking damage.

I think it might have to do with the enchantress lobbing a chicken hex at the same time that you pause, but I'm not completely sure.