Confirmed with my Windows 7 little Desktop, Teamviewer into it via Android Phone app, open Avast, and Mouse control don't, can't click anything, no response at all clicking any button, even Windows Buttons
Gonna check with Windows 10 Remote Desktop as well in a moment from my Windows 10 Pro Desktop to my Other Windows 10 Pro Desktop--No problem experienced there, seems to only affect other remote programs, Teamviewer with Windows 7, Vista and XP machines