Noticed today that when I'm in two-monitor mode (Extend), when the MC window is in the second monitor, DVB-T TV will not start (black screen and nothing happens, I can press Stop). The problem is not there if MC is on the first monitor, or if ROHQ is used (works on both monitors). If I start playback on the first monitor and move it to the second, playback stops (RO).
(MC 21.0.90, W10 x64, AMD 5670)