I have the same issue .up until my Michael Kors smartwatch did the wear OS update my messages were coming thru. After the update, I cannot download the message+ app to my watch. It shows on my phone as apps pushing to watch but the coorespcorres app is not seen on my watch like it was before update. The only thing I can find is an app called messages for Android OS (Android wear) but I want to continue to use the message + app not a new one .
Anyone have an answer so I don't have to scroll thru 40 coemts? :-/