Dual monitor/ Touch-screen mouse drifting

When using Minecraft PC on my dual monitor system AND my window is on the larger LCD secondary monitor, I get mouse drift.

The "Bind Cinema to F8" option functions, I can tell the difference between the two modes, but it does not help the 'drift'.

Moving the window to my smaller "touch-screen" window corrects the problem.

"Touch Screen" mode is OFF from the menu in both cases.

If I set my monitors to "clone" display, the drifting problem goes away, but I lose the multi-monitor ability.

Altering the mouse settings does not affect the "drifts only on the big secondary" problem.

Note: The Windows 10 "XBox" version does NOT have this problem running under the same conditions at the same time as the PC client. This problem initially started when we did the Windows 10 upgrade.