i already check many times my script is the same as in the video, when i use my unity editor as a host it work normally the same as in the video BUT when i make the build stand alone and host it in the stanc alone and another stand alone be the client and unity editor as another client no unit list is stored in my unit list in RTSPlayer script (in polayer game object)
Hmm, sometimes this could be affected by an input system bug. Please check Project Settings → Player → Other and make sure the Active Input Handling is set to both