My setup was working perfectly. Streaming 4k to my TV via my Jsaux dock, streaming 800p to my steamdeck perfectly.

Today, for some reason, I have black bars on my deck. I cannot figure out why. I've checked the gear icon in steam before launching moonlight, I've checked the gear icon in moonlight before connecting to PC streaming. I've changed graphics settings in game.

Steam big screen mode launches with bars... I just don't understand. I'm rebooted SD, PC, sunshine everything. What am I doing wrong?