Cursor frequently jumps back to second display

[Xikura]

I have an old Cintiq 13wx which has a monitor, but it's so small so I only use it as a tablet these days, it still has a screen so technically I am forced to have a multiple screen setup.
I map my pen to be on one screen at a time, and have a button to toggle between them. The problem is when I'm inside of Paintstorm, whenever i tab to another program say Google for reference or Spotify to change music, or even click on the start bar, the pen switches to the second display.

I can then click toggle display to go back to my primary display, but when I click on Paintstorm again it it realize that since I clicked that toggle display button, the cursor should be on the secondary display, so it switches back to that one.
I then have to click toggle display yet another time for Paintstorm to realize my cursor is on my primary display.

I see someone suggesting changes in forcetablet.txt, but that file is nowhere to be found in my Data folder.

[support]

Hello. In version 1.41: Open Menu-File-Tablet settings, at 1st try to change Mode(use your mouse to select it), if it will not help - enable checkbox "Coordinate mouse mode"

[Xikura]

I'm using version 1.41, tried all combinations of modes with and without the mouse coordination mode turned on, but it was the same result on all of them.

What does these different modes do exactly?