Hi,
DXO PhotoLab 4 is apparently not compatible with Radeon Software Adrenalin 2020 Edition 20.2.2 + Radeon RX Vega M graphics card.
As soon as you display a photo capture file - no matter if JPEG or RAW - with >= 75% size, the photo disappears and everything turns black in this area instead.
Kind regards
dxotestit