Question.. Ive always used different acrylic monomer from my acrylic liquid polymer. Ive never in 3 years had any issue mixing 2 different brands. However i ordered a different liquid from different vendor bc my person was out of stock. Im doing a set of extensions all of sudden one nail hardens and cures the other 4 fingers came out rubbery and i was able to just pull the acrylic off with my fingers. Why did one harden the others did not? All fingers were prepped the same way