My monk herald skills

I created a hollow palm monk and none of my herald skills dont work ... i have herald of thunder and ice ..and combat frenzy .. i tryed activate them and nothing plz help...

https://www.pathofexile.com/forum/view-forum/2217

Check there, early access discussion.

I do not know the answer, but check you meet the skill requirements, have enough spirt available and also check if the skill check mark is ticked to work with the weapon set you are using.

If it is none of those, it might be a more complex interaction needing help from the early access discussion, this section related to POE1.