I am getting the same issue with mining says cannot use while gathering and the only thing teh console has is that its using byregot's ward. To me it seems like its trying to mount before its finished gathering the node.
Its most def something wrong with the navigation... now it is trying to run around a node in a circle gets to the node then jumps over it runs around gets to the node jumps over it. These meshes worked fine before the patch. Ya cant gather at all for more then 2min then all hell breaks loose. It may have to do with the bot thinking its not close enough to the node it seems to me its trying to get closer even though its at the node.
Its most def something wrong with the navigation... now it is trying to run around a node in a circle gets to the node then jumps over it runs around gets to the node jumps over it. These meshes worked fine before the patch. Ya cant gather at all for more then 2min then all hell breaks loose. It may have to do with the bot thinking its not close enough to the node it seems to me its trying to get closer even though its at the node.