Jellyfin-web: videoOsdBottom vanished after switching video quality or subtitles

[nyanmisaka]

Describe The Bug
videoOsdBottom from the redesigned OSD vanished after switching video quality or subtitles.

Steps To Reproduce

1. Play a movie.
2. Change the video quality to make the play method changed.
   Or choose a PGS graphical sub to enable transcoding.
3. The bottom of OSD vanished once the video get reloaded.
4. Cannot control the playback by using keyboard.

Expected Behavior
OSD will not vanish.

Logs
Not observed any error in console.

Screenshots

System (please complete the following information):

• Platform: [Linux, Windows, iPhone]
• Browser: [Firefox, Chrome, Safari]
• Jellyfin Version: [10.7.0 unstable 20201002.5]

[lavanoid]

This is still a problem for me.

[dmitrylyzo]

Issue from #1951 - I added a call of hidePrePlaybackPage for animated background, but it also affects some cases (including described in this issue).
This should be fixed in #1903.