Interface fails with vertical videos

[derickso]

mpv Information

❯ mpv --version
mpv v0.41.0-1038-g87b8d352d Copyright © 2000-2026 mpv/MPlayer/mplayer2 projects
 built on Sep  7 2026 20:31:45
libplacebo version: v7.360.1
FFmpeg version: n9.0.1
FFmpeg library versions:
   libavcodec      63.1.101
   libavdevice     63.1.101
   libavfilter     12.1.101
   libavformat     63.1.101
   libavutil       61.1.101
   libswresample   7.1.101
   libswscale      10.1.101

Details & Reproduction Steps

Open or rotate a video so it's orientated vertically, the modernz overlay all but disappears except for playlist controls

Log File

No response

I carefully read all instructions and confirm that I did the following:

• I tested with the latest mpv version to validate that the issue is not already fixed.
• I provided all required information.