If your brush on glitter was not completely dry, this could cause the symptons you're describing. When I use glitter I always have to topcoat a second time at least. After your topcoat is dry, run your finger along the glittered area. If it feels like fine sandpaper not smooth you need a second coat. Also as mentioned before, when mixing your epoxie make sure to get as exact as possible equal amount and mix the heck out of it. If pouring your epoxies, unless you are using a premarked mixing cup, place a piece of masking tape on the outside of your mixing cup. Then using a syringe, measure in water to your cup and mark it on the tape. 1cc, 2cc, etc... Dry out the cup completely, then do your epoxie. Hope this helps.
Tight Lines, bb