I had a Windows 10 update today.
In the replay, where the phases of the turn are displayed on a black background, the desktop picture shows in that spot when the message goes away. This isn't a big deal in the replay, but it alerted me that something was different.
When doing a turn, when I hover over a base and see the base detail popup on the map, it shows, then when I move the mouse away from the base, the area where the popup was is now a box with the desktop picture showing through the map. If I then scroll the map, the map redraws and everything is ok again. This happens immediately and every time, and happens because of something I'm doing, not some Windows process taking control.
Also, when I tried to screen capture this, the capture was of the whole desktop, and none of the game. As if the game wasn't really displayed.
I haven't made any changes, other than the automatic Windows 10 update (which was a big update) that installed this morning. I checked my command lines settings and they are unchanged.
[edit: My command line settings are : "C:\Matrix Games\Aurorus\Beta2\War in the Pacific Admiral Edition.exe" -px1920 -py1080 -dd_sw -deepColor -SingleCpuOrders
using Windows 10 Professional 64]