Please fix this!
DisplayFusion 9.7.1 confused Main Desktop with 2nd Monitor Desktop.

Situation #1: Only Win10 machine (no 2nd monitor connected)
~Windows 10 Desktop has document files/folders.

Situation #2: Win10 machine + 2nd monitor connected via USB-C Thunderbolt
~Windows 10 Desktop losesits document files/folders.
~These same documents/folders gets migrated to 2nd Monitor's Desktop immediately upon connection.

~Upon disconnection of 2nd Monitor, the Win10 Desktop immediately repopulated with the document files/folders it previous had.

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Epilogue:
In Windows 10, [Display_Settings]>>[Identify_Monitor] showed correct "1" and "2" for which Main/2nd Monitor. But the desktop files/folders were all on "2" 2nd Monitor!