[Bug]: Sync issues and total progress loss (downladed books) #489

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opened 2026-04-24 23:10:58 +02:00 by adam · 1 comment
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Originally created by @FlamingoDaBird on GitHub (Jun 28, 2022).

Describe the issue

Hi.

Regarding audiobooks.

Not sure how the sync is supposed to treat offline/downloaded books.
android app v0.9.49-beta
backend v2.0.22 docker

Recently I had a book offline (downloaded it from the server) I had a progress about 3 hours. Next morning the progress was gone.
The day before I had a short flash of a red warning messagebox, something like "...couldn't sync..."
The next day my progress was gone when I pressed play on the audiobook it started from the beginning. Seems like the server had the correct progress still saved but it didn't sync.

When I my download a new book om my android app it doesnt seem to sync over progress to the backend...

How does the sync work? Is there a local persistent file keeping track on the app and that one syncs over to the backend even if the audiobook is downloaded? Are downloads and streams treated as the very same book? Syncs progress on both versions if you loose server connection?

when I tried to add a new book in the backend, it shows up in the app as well with the current sync progress (10minutes in)
but if I remove the progress on the backend and it removes the book from the continue-shelf, it is still visible in the app in the continue-shelf, but the progress is of course cleared.

I'm not sure if others also experience some kind of sync bugs and/or total loss of progress with downloaded or streaming audiobooks.

Sadly I haven't had the time to further troubleshoot to see if happens often. I haven't been using the android app that much.

Thank you for your amazing work! :)

Steps to reproduce the issue

Audiobookshelf version

v2.0.22

How are you running audiobookshelf?

Docker

Originally created by @FlamingoDaBird on GitHub (Jun 28, 2022). ### Describe the issue Hi. Regarding audiobooks. Not sure how the sync is supposed to treat offline/downloaded books. android app v0.9.49-beta backend v2.0.22 docker Recently I had a book offline (downloaded it from the server) I had a progress about 3 hours. Next morning the progress was gone. The day before I had a short flash of a red warning messagebox, something like "...couldn't sync..." The next day my progress was gone when I pressed play on the audiobook it started from the beginning. Seems like the server had the correct progress still saved but it didn't sync. When I my download a new book om my android app it doesnt seem to sync over progress to the backend... How does the sync work? Is there a local persistent file keeping track on the app and that one syncs over to the backend even if the audiobook is downloaded? Are downloads and streams treated as the very same book? Syncs progress on both versions if you loose server connection? when I tried to add a new book in the backend, it shows up in the app as well with the current sync progress (10minutes in) but if I remove the progress on the backend and it removes the book from the continue-shelf, it is still visible in the app in the continue-shelf, but the progress is of course cleared. I'm not sure if others also experience some kind of sync bugs and/or total loss of progress with downloaded or streaming audiobooks. Sadly I haven't had the time to further troubleshoot to see if happens often. I haven't been using the android app that much. Thank you for your amazing work! :) ### Steps to reproduce the issue 1. ### Audiobookshelf version v2.0.22 ### How are you running audiobookshelf? Docker
adam added the bug label 2026-04-24 23:10:58 +02:00
adam closed this issue 2026-04-24 23:10:58 +02:00
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@advplyr commented on GitHub (Jul 21, 2022):

A few fixes have been made in the latest android v0.9.51-beta but the m4b downloads are currently broken in that one. I will try to get out another android release in the next few days.
If progress issues persist with new downloads you can open up another issue in audiobookshelf-app

@advplyr commented on GitHub (Jul 21, 2022): A few fixes have been made in the latest android v0.9.51-beta but the m4b downloads are currently broken in that one. I will try to get out another android release in the next few days. If progress issues persist with new downloads you can open up another issue in audiobookshelf-app
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Reference: starred/audiobookshelf#489