If you were using with a cart or tank, may simply be saturated. I would try blowing it out, cleaning it and dry burn. Re-prime with 4-6 drops (wait about a min to soak into mesh) and then add 2-3 drops and vape. When I'm using plain ole 510 attys, I de-wick and de-bridge (lots of Youtube vids on this). Alternative is to get a good dripping atty (I love Cisco 306's...)