Servant of Arakaali "Skincrawlers" Node Not Providing Poison Chance? *EDIT*- MISUNDERSTANDING

Using mirror arrow of bombarding socketed in a body armour with chance to poison support currently. The "chance to poison from main hand hits" listed in the tooltip in the character page is 40%, which is the value from chance to poison. Removing the support completely removes the poison chance line from the tooltip, suggesting that it's 0% when it should be 50% from the ascendancy node.

Otherwise, great event so far!

*EDIT* - After some digging in PoB and with the help of a friend who actually plays minions, it seems to be working as intended, it is overwriting the 40% chance with a 50% chance, and the tooltip value is the chance for the original mirror arrow to poison. Apologies! You can delete this thread or leave it up for others to potentially not make the same mistake.

I have a problem that with tons of chaos and phys dmg my BAMA under Arakaali ascendancy does literally zero poison dmg. It must be bugged or something.

Im confused as too why it would overwrite, would you end up with 90% after node and support?