When the gunrunners arrive in the Indian village they are seen to be travelling in a covered-wagon in one shot, and on an open buckboard covered with furs in the next shot.
When the settlers leave the deserted house, Potter is supposed to be leading the wagon train. But he's the third wagon to depart.
When Painless (or the dummy that is supposed to be Painless) is tossed into the air by the two saplings, his "body" briefly casts a shadow on the "sky," revealing that the "sky" is an indoor set.