Bad Omen isn't replaced with Raid Omen when going near a village

Playing on realm when going to trigger a raid with new bad omen potions the bad omen effect just disappears and raid will not start and no raid bar I've tried all 5 levels bad omen potions with no joy.

Steps to reproduce:

1. Drink an ominous bottle
2. Go near a village

Observed result:
You do not get Raid Omen at all

Expected result:
Bad Omen is replaced by Raid Omen for 30 seconds, and when the effect runs out a raid starts.