[Bug]: Invalid downloaded cover file causes crash #1352

New Issue

2026-04-24T23:57:46+02:00

adam commented

2026-04-24 23:57:46 +02:00

Originally created by @DavidPowell on GitHub (Mar 3, 2026).

I have verified that the bug is not already awaiting release

Yes

What was the Problem?

I have an audiobook on my server (Doctor Who "The Black Hole" from Humble Bundle), and it shows up with a valid cover image on the server.

However, after downloading this to a local file onto my phone, I somehow ended up with a 0 byte .jpg file as the cover image. This causes the following problems with the audiobookshelf android app

When trying to play this audio book from local files (not connected to server), the app immediately crashes
When this file is present, the Android Auto UI for Audiobookshelf just sits there constantly loading, then finally gives a failure message.

I have managed to fix this issue on my device by deleting and downloading local files from server again, which resulted in a valid cover art file. However, the underlying issue of incorrectly handling invalid cover art files still remains.

Steps to Reproduce the Issue

I guess adding a 0 byte .jpg cover image to local files would reproduce, although I haven't figured out how to do this manually on my own phone.

What was Expected?

Expected audiobookshelf to play the audio file.

Phone Model

Pixel 9a

Phone OS

Android 16 stock, running audiobookshelf app version 0.12.0-beta

Audiobookshelf App Version

Android App - 0.11.0

Installation Source

Google Play Store

Additional Notes

As far as I can tell the issue is distinct from #1143

Originally created by @DavidPowell on GitHub (Mar 3, 2026). ### I have verified that the [bug is not already awaiting release](https://github.com/advplyr/audiobookshelf-app/issues?q=is%3Aissue%20label%3A%22awaiting%20release%22) Yes ### What was the Problem? I have an audiobook on my server (Doctor Who "The Black Hole" from Humble Bundle), and it shows up with a valid cover image on the server. However, after downloading this to a local file onto my phone, I somehow ended up with a 0 byte .jpg file as the cover image. This causes the following problems with the audiobookshelf android app - When trying to play this audio book from local files (not connected to server), the app immediately crashes - When this file is present, the Android Auto UI for Audiobookshelf just sits there constantly loading, then finally gives a failure message. I have managed to fix this issue on my device by deleting and downloading local files from server again, which resulted in a valid cover art file. However, the underlying issue of incorrectly handling invalid cover art files still remains. ### Steps to Reproduce the Issue I guess adding a 0 byte .jpg cover image to local files would reproduce, although I haven't figured out how to do this manually on my own phone. ### What was Expected? Expected audiobookshelf to play the audio file. ### Phone Model Pixel 9a ### Phone OS Android 16 stock, running audiobookshelf app version 0.12.0-beta ### Audiobookshelf App Version Android App - 0.11.0 ### Installation Source Google Play Store ### Additional Notes As far as I can tell the issue is distinct from #1143

adam added the bug label 2026-04-24 23:57:46 +02:00

adam referenced this issue

2026-04-24 23:59:19 +02:00

[PR #1352] [MERGED] Translations update from Hosted Weblate #1563

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Reference: starred/audiobookshelf-app#1352