Not always a guaranteed first time fix for FTF's, but try this next time- Take your finger off the trigger, use the heel of the other hand to bump the slide forward.
Sometimes newness or funk will prevent the slide from going into full battrey. Now, if you bump too hard, it will hurt your hand and more securely lodge a bad ctg. Don't do that. Bump enough not to hurt yourself and then if you find you have a bad ctg that just does not want to get along, it won't be all that hard to get out and it wont hurt you. Life's short- don't hurt yourself.