PowerShell attempt 1: python .\screen-desktop.py --config .\.arena-device-local\screen-desktop-fixture.json — python pid 54588
Public reply: complete true, mediaSaved true, five 3840x2160 PNGs, BitBlt error 0 each pass.
Desktop measurement: first red Saved images: 1 at 44.000 s; counts 2-5 by 52.250 s.