Newbie issues with drop all and drop all.map

Drop all seems to be dropping only the first item in my inventory. Drop all.map seems to be dropping only the first map. However, I did notice that drop all.practice dropped both my practice weapon and shield alright. Log enclosed, except for the last part. <100%hp 100%m 68%mv 1060tnl> inv You are carrying: a map of Hamsah Mu'tazz a map of Galadon a hastily-scrawled note a map of eastern Thera a map of western Thera a map of northern Galadon (Glowing) a long burning torch (Humming) a single-edged broadsword <100%hp 100%m 68%mv 1060tnl> drop all drop all.map You drop a map of Hamsah Mu'tazz. A map of Hamsah Mu'tazz disintegrates as it hits the floor. <100%hp 100%m 82%mv 1060tnl> You drop a map of Galadon. A map of Galadon disintegrates as it hits the floor.