I stumbled on a utube a few years ago where a guy would spray a bit of Pam or any other non-stick olive oil, etc inside a quart zip lock bagCan you post a few details!!!!! I'm just kidding.
What lube are you using and how are you applying it?
toss a bunch of cases in and roll around in your hands to get a good coat on all the cases -- works great - have not had a stuck case in years and it washes off easily