When they add rolling for stats, they should probably make sure to force the minimum jump distance to be 4.5 meters, even for STR scores 7 or lower, otherwise people who have less than 8 STR will get stuck at the mandatory jump.
The mandatory jump is from high to low. You can go beyond your "range" if you jump from high to low. It just hurts a bit and leaves you on your knees for a short while. You can see this easily in the very first room by jumping from the ledge to beyond your range line on the floor.
