Dancer buff is not working

Game mode: [Online
Problem: | Bug |
Region: Europe

I got a dancer thrall III and before the latest update he was giving me a buff of health regen when out of combat,now he just have very low health regeneration compared to before and the buff does not stay when i leave home for exploration.
Is this something you changed without saying in patch notes or is it a bug?

Steps on how to reproduce issue: