I have been testing mark of the Fey Slayer rank 2 and Mark of the Undead Slayer rank 2 and neither of them seems to be working at all.
I have tested Fey Slayer in new Sharandar, hitting mobs from the area and the same hit with and without the mark does exactly the same amount of damage and there is no additional individual damage triggering, just in case Slayer Mark where an independent damage entry.
I have tested Undead in Neverwinter graveyard and the same problem is happening, the same hit does the same amount of damage with and without the slayer mark.
I have tested it in Vault of the Stars and neither Fey Slayer nor Undead Slayer seems to affect any enemy inside the dungeon.
Are Slayer mark rank 2 broken since the combat, companion and stats rework?