Why was Halo not as effective second time?

did not see the same great results after my second halo. My face was not even on fire when I left and no appearance of tiny holes in my face a day later before dark spots appeared. Didnt seem to be the same intensity? Did make comment not doing BBL prior to halo anymore because no real value. Not sure if i had BBL prior treatment, they did not clarify. For the cost, wondering if i should go back or if this sounds typical for second treatment? Thx!