Bug/Issue Horse Duplication

When playing before I right clicked on a horse that my co op partner also clicked on, we both got on a horse except the one attached to my character turned when they turned not when I did. I was unable to dismount at all and then at 2am the game did not have me collapse automatically then disconnected. I had the speed of being on a horse but the horse graphic was just ontop of my own and would clip through everything.