Warthog lockup

[danmcmanus]

While shooting some targets today, my Warthog locked/jammed up at full draw resulting in a dry fire while I standing there looking at my "slack" string. While it was jammed I kept it pointed at the target while looking up and down at the cams and they bother looked lopsided. I wiggled the sting and it let loose. I don't want to draw it again until I have a pro look at it but does anyone have any ideas about what might cause this?