I have the same problem on eight iMacs adn a Macbook that I upgraded to Mojave. TV 13 (full version) works fine as long as the display is awake. If the display goes to sleep (based on setting in System Preference -> Energy Saver), I can connect with Remote Desktop, and see the client's display screen, but keyboard and mouse actions are not accepted by the remote client. I do not have this problem with Macs running High Sierra.
... View more