[Bug]: "SSO error: Config already exists for this address and username" after upgrading server to v2.28.0 #1258

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opened 2026-04-24 23:56:01 +02:00 by adam · 1 comment
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Originally created by @chancez on GitHub (Aug 12, 2025).

I have verified that the bug is not already awaiting release

Yes

What was the Problem?

I upgraded my server to v2.28.0 from v2.25 earlier this week and all was fine. My app got closed and I had to relogin today but it's failing with the error SSO error: Config already exists for this address and username. I'm using Authentik for authentication and Traefik for my proxy, and I've confirmed the authentication requests are succeeding. I can authenticate via the browser fine.

Steps to Reproduce the Issue

I'm not entirely sure how to reproduce.

What was Expected?

Login via app should proceed.

Phone Model

Pixel 9

Phone OS

Android 16

Audiobookshelf App Version

Android App - 0.10.0

Installation Source

Google Play Store

Additional Notes

I was able to remove the config and re-add it to login successfully.

Originally created by @chancez on GitHub (Aug 12, 2025). ### 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 upgraded my server to v2.28.0 from v2.25 earlier this week and all was fine. My app got closed and I had to relogin today but it's failing with the error `SSO error: Config already exists for this address and username`. I'm using Authentik for authentication and Traefik for my proxy, and I've confirmed the authentication requests are succeeding. I can authenticate via the browser fine. ### Steps to Reproduce the Issue I'm not entirely sure how to reproduce. ### What was Expected? Login via app should proceed. ### Phone Model Pixel 9 ### Phone OS Android 16 ### Audiobookshelf App Version Android App - 0.10.0 ### Installation Source Google Play Store ### Additional Notes I was able to remove the config and re-add it to login successfully.
adam added the bug label 2026-04-24 23:56:01 +02:00
adam closed this issue 2026-04-24 23:56:02 +02:00
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@nichwall commented on GitHub (Aug 12, 2025):

Duplicate of https://github.com/advplyr/audiobookshelf-app/issues/1638

@nichwall commented on GitHub (Aug 12, 2025): Duplicate of https://github.com/advplyr/audiobookshelf-app/issues/1638
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Reference: starred/audiobookshelf-app#1258