I just did some quick testing...
Set Windows to ONLY show on display 1 (total display size: 1920x1080).
Copied a file onto the desktop, and renamed it. IT STAYED IN POSITION!
Set Windows to ONLY show on display 2 (total display size: 1920x1080).
Renamed the file again. IT STAYED IN POSITION!
Set Windows to show on BOTH displays (extended) (total display size: 3840x1080).
Renamed the file again. IT STAYED IN POSITION!
Restart the PC.
Rename the file again. IT STAYED IN POSITION!
For some ODD reason, that seems to fix my issue, FOR NOW(!)