I also have problems with ScreenMonkey. Basically to get it properly running on Windows 10 systems. Cuurently we’re using VLC as alternative, but that is hard to configure. See linked document.
ScreenMonkey is not supported anymore by its creators. Unfortunately.
If ScreenMonkey is running, then you are lucky for the moment (till an Windows update arrives or so) and both programs work nicely sidebyside.
The good news is that ES v5 has more functionality, so we hope that that will eliminate the need of using ScreenMonkey or VLC.
HTH
Good luck