Path finding to Stone Blocks does not work after mining and collecting the first stone

[Saruman]

Once a stone deposit has been mined and the first stone block collected the player character fails to pathfind to the second block without first moving the character around.

Edit: This seems to happen when the character did not need to move to deliver the first Stone Block. It also seems that, when moving from the cart to collect the second piece, the walk animation on the player character does not start for a short while even though the character is moving.

PS: The animation on the cart wheel rotation seems to be out of sync with the cart's linear speed.