As of today, this works again on my system! Version information:
$ mpv --version mpv v0.40.0 Copyright © 2000-2025 mpv/MPlayer/mplayer2 projects libplacebo version: v7.349.0 FFmpeg version: 7.1.1-1+b1 FFmpeg library versions: libavcodec 61.19.101 libavdevice 61.3.100 libavfilter 10.4.100 libavformat 61.7.100 libavutil 59.39.100 libswresample 5.3.100 libswscale 8.3.100 Big thanks to everyone who worked on fixing this (possibly without even reading this bug report).
