I've fired hundreds of rounds through my Encore and have never had any trouble with the primers sticking, after firing!
I have used steel, copper and aluminum cased primers and not had any trouble!
When I open the action and tip the rifle, the primer will fall out on it's own!
I don't even have to touch it!
If the extractor on your rifle rides up-and-over the primer, I would contact TC if I were in your place!
As already stated, many people remove the extractor and after they fire the rifle, they just pick the primer out with their fingernail!
I have an E-Z TIP Extrator on my Encore!