BUG ! Survival Spec: Outland Venom Talent NOT working

the talent used to work last week when I tried it. When I decided to give it a try again today it didn’t show any debuff on the target. tried dummies, beasts & arena skirmishes, still nothing. tried relogging - nothing. please fix.
Can other hunters confirm this?

Yeap still not working. I`ve tried it 5 mn ago.

still not working