Nomad How do I delete monitors in version 2.9.x.x? I only need two but it gives me four.

1. My Ion visualizer worked well with the older version of Nomad. since I upgraded to the latest version and loaded my show,  then loaded my latest screenshot, I get Four Monitors on my PC with only two monitors.
2. I tried resetting all the workspaces, then I changed the shell settings but I could not get rid of the Four Monitors on two displays.
3. I even tried a deep clean on the shell set up.

please help. Thank you