Smith of Kitava - heatproofing Asc node still takes dmg from ailments

Hi Team,

The heatproofing node on the smith of kitava asc does not seem to work most of the time. My HP keeps dropping whenever I am inflicted with any damaging ailment.
reference: Bug Report ID: #4159266660
So far I have seen my char take dmg from poison and ignite.

Can you please take a look?