Hello, I would like to point out to you that Input Director makes the mouse cursor disappear from the screen of the slave computer. Then, it reappears when using a mouse on the slave computer. I suspect they are using the software on the slave computer to detect mouse movements to redisplay it.
In your place, I will consider removing the screen cursor from the slave computer. Even if it is only an aesthetic effect.
Thank you in advance for giving me news on cursor management on the slave computer.