It is not a mystery. There are specific things a programmer has to do to play nice with multiple monitors.

https://docs.microsoft.com/en-us/windows/desktop/gdi/multiple-display-monitors


BIAB: 2023 UltraPak
DAWs: StudioOne 5 Pro, Cubase 12 Pro
Audio: Scarlett 18i20
OS: Win10 64-bit CPU: Haswell 4790 Mem: 24 GB Vid: GTX-760Ti

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