I'm not quite sure how your's got stuck in the feed position.
Have you checked to see if the advance button is stuck. That happened to me on a couple of occasions. I resolved it by lubricating the button with a graphite powder lubricant, and glued a small piece of plastic on the button, to give me something to grab and pull on, if the button got stuck again.
The lubricant seem to work after a while, the button no longer gets stuck.