Thank you for your message and provided feedback.
We'll see what can be done about this issue in our future updates. Meanwhile, please try switching your Viewer to the View Only
connection mode - this will ensure that the cursor is not moving on the Viewer's side when you need to work at the Host's machine.
You can quickly switch to the View Only mode directly within the remote session window using the corresponding icon on the Toolbar as described here
or use the Alt + F12
keyboard shortcut to switch between modes.
Hope that helps.