So you gave them share and they moved your hero. Now go report them all for share abuse xD
Ok to be serious it is an old bug, but happens rarely, and most likely right from the start. There is also an other one, which was happened even more rarely with "transforming" heroes like lycanthrope, naix, dragon knight, terrorblade, and leshrac. There was a special command called -recreate to solve this, dunno if it exist in newer versions or not, but next time you can give it a try too.