Ball stops on rim during foul shot.

[hbioteach]

Girls vasity. 3rd quarter 2nd shot of a 1 and 1. Ball comes to reat on the rim between the rim and the glass directly behind the rim. I'm the trail. Jump ball. I've the ball lodge between the rim and the glass before but not just rest on the rim.

[ref18]

If it comes to rest, then you've got a jump ball. Now if another shot was going to be attempted after it got stuck, you'd rule that shot no good, and administer the next shot(s)

Good Call