I Just Had A Shower Can I Wax I'm Using Parrisa Body Sugar Wax To Wax My Legs And Something Is Going Wrong...?

I'm using parrisa body sugar wax to wax my legs and something is going wrong...? - i just had a shower can i wax

I used to be dozens of times before without problems, but this time I begin to strip the wax, the hair comes with only 1 or 2, it, while the rest back. I've tried more and more, after I showered and dried and tried to wait for a few days after my shower. I think it could do something with oil in the skin have, but I'm not sure. Ideas?