The blackout issue is now resolved by supplying an adequate electrical power (5.0V / 2.0A or more) to my analogue to HDMI converter (RetroTINK-5X Pro).

Twitch live stream archive: (watch around 00:00:43--06:48:18)

Skipped levels: 1-06, 1-09, 2-06, 2-15, 3-10, 3-12, 3-14, 3-16, 3-19 2-gem levels: 2-05, 2-14, 2-17, 3-20