Siege catapult ammo cant be re picked up like dropped weapons

[Zhuljin]

i was helping my catapult shoot faster so i helped load ammo
when they shot one of the crew went to get the next stone but since i stood ready i loaded it up first, he then dropped his projectile which cant be picked up again
just a minor detail just taught i would report it to make mount and blade bannerlord the best gamer ever!!!!

also one map one of my catapult would fire one shot then not reload because there was a tree nearby that the crew unit could pathway around when he went to get ammo