Could be bent ramrod . . . yes . . . easily rectified . . . roll on a flat surface and gently bend until it rolls with full contact.Hold up. Could the problem be from a bent ram rod? No I can't feel any protrusion, but I'm realizing the rod is a tad bent. Could that have made it get stuck?
Could be bent thread on the end of the jag that screws into the ramrod . . . can be fixed relatively easily . . . gently bend.
Could be the internal threads in the end of the ramrod are not 100% parallel to the ramrod centerline . . . more difficult to fix . . . cut RR shorter and re-tap threads. My bet is the ramrod is bent, even the slightest bend can make a big difference.
Shouldn't be this big a hassle for you to get your smoothie to function properly.