I noticed this yesterday on my first build for a while and implemented a quick workaround by adding "/t:Rebuild" to the msbuild command line to force a rebuild of the world. Obviously not supportable for continued use.
I haven't had time to go back and look into the issue, my first suspicion is something to do with
 MR 3329, but I don't have anything to back that up.
P.S. CMD supports (and has for a long time) copy and paste of the text so no need for an image.  Highlight the text with the mouse and Ctrl + C or Enter.  Works in PowerShell as well, Windows Terminal is different (sigh) and only supports Ctrl + Shift + C.
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