Problems with Screen Assignment

We have been having ongoing problems with the assignment of screens in presenter this past year. It was only periodic for a while but has become more frequent in recent months, nearly weekly.

We currently have 4 monitor outputs from our media computer:
1) the primary monitor
2) the projector/slide monitor
3) a TV for stage display
4) an HDMI out for our ATEM for green screen.

Essentially, we frequently have issues with presenter randomly choosing which monitor to assign screens to. The ATEM will get the stage display, and the stage will get the green screen, or other weird scrambles. I have tried different orders of powering things on and have not found a consistent hardware route to recreate the problem. In windows, the monitors are always assigned correctly, it is just in the software that it seems to inconsistently work.

Has anyone else been having problems with this? Have you found a consistent solution to fix it without the need to reassign the presenter screens every week?

Thank you!