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Offline playback on Android stutters every 9 seconds #984

@dylanrjones

Description

@dylanrjones

Description

Whenever I try to play a saved video on Fladder for Android, it stutters for half a second every 9 seconds. Direct streaming and transcoding work fine when online.

This happens whether in true offline mode (i.e. airplane mode) or when connected to the internet but playing a saved file. I have tried increasing the video buffer from 32MB to 128MB and 256MB, and have used both original and transcoded files. Happens with MPV or MDK. Hardware acceleration makes no difference. Subtitles are off.

Doesn't seem to happen on Native, but then I can't skip forward or back and it's an all-round bad experience. I'm using a Pixel 10 Pro Fold on the latest May update for Android.

Reproduction steps

Save video using Fladder's offline sync. 
Navigate to video and Play. 
Will ask for Direct, Transcode or Offline, choose Offline
Watch video, skips every 9 seconds.

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Logs

This is the only log error that happens

[SEVERE  |  Flutter error: HttpException: Invalid statusCode: 404, uri = https://jellyfin.[domain].com/Items/.../Images/Chapter/2?fillHeight=576&fillWidth=384&quality=90, 2026-05-08T15:20:03.911414

]

Platform

Android

App Version

0.10.3 build 630

Jellyfin server

10.11.8 on Unraid Docker Container

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