Bug#850067: mpv: [osd/libass] [0x55f686fa1bc0]: Warning: no style named 'Default' found; Segmentation fault

[Roman Lebedev]

Package: mpv
Version: 0.23.0-1
Severity: important

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When i try to play anything with mpv, it spams
[osd/libass] [0x55f43cbdf010]: Warning: no style named 'Default' found
[osd/libass] [0x55f43cbdf010]: Warning: no style named 'Default' found
[osd/libass] [0x55f43cbdf010]: Warning: no style named 'Default' found

If i try to use 0/9 to adjust sound, it crashes with 
Segmentation fault

- -- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'unstable-debug'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mpv depends on:
ii  libasound2                              1.1.2-1
ii  libass5                                 0.13.5-1
ii  libavcodec57                            7:3.2.2-1
ii  libavdevice57                           7:3.2.2-1
ii  libavfilter6                            7:3.2.2-1
ii  libavformat57                           7:3.2.2-1
ii  libavutil55                             7:3.2.2-1
ii  libbluray1                              1:0.9.3-3
ii  libc6                                   2.24-8
ii  libcdio-cdda1                           0.83-4.2+b1
ii  libcdio-paranoia1                       0.83-4.2+b1
ii  libcdio13                               0.83-4.2+b1
ii  libdrm2                                 2.4.74-1
ii  libdvdnav4                              5.0.3-3
ii  libdvdread4                             5.0.3-2
ii  libegl1-mesa [libegl1-x11]              13.0.2-3
ii  libgbm1                                 13.0.2-3
ii  libgl1-mesa-glx [libgl1]                13.0.2-3
ii  libjack-jackd2-0 [libjack-0.125]        1.9.10+20150825git1ed50c92~dfsg-4
ii  libjpeg62-turbo                         1:1.5.1-2
ii  liblcms2-2                              2.8-3
ii  liblua5.2-0                             5.2.4-1.1+b1
ii  libpulse0                               9.0-5
ii  librubberband2                          1.8.1-7
ii  libsdl2-2.0-0                           2.0.5+dfsg1-2
ii  libsmbclient                            2:4.5.2+dfsg-2
ii  libsndio6.1                             1.1.0-3
ii  libswresample2                          7:3.2.2-1
ii  libswscale4                             7:3.2.2-1
ii  libv4l-0                                1.10.1-1
ii  libva-drm1                              1.7.3-2
ii  libva-wayland1                          1.7.3-2
ii  libva-x11-1                             1.7.3-2
ii  libva1                                  1.7.3-2
ii  libvdpau1                               1.1.1-5
ii  libwayland-client0                      1.12.0-1
ii  libwayland-cursor0                      1.12.0-1
ii  libwayland-egl1-mesa [libwayland-egl1]  13.0.2-3
ii  libx11-6                                2:1.6.4-2
ii  libxext6                                2:1.3.3-1
ii  libxinerama1                            2:1.1.3-1+b1
ii  libxkbcommon0                           0.7.0-1
ii  libxrandr2                              2:1.5.1-1
ii  libxss1                                 1:1.2.2-1
ii  libxv1                                  2:1.0.11-1
ii  zlib1g                                  1:1.2.8.dfsg-4

Versions of packages mpv recommends:
ii  xdg-utils   1.1.1-1
ii  youtube-dl  2016.12.01-1

mpv suggests no packages.

- -- no debconf information

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