OwnTone server fails to start after OS upgrade from 9.5 to 10.2

Maybe anyone can help me a bit further with the following:

After upgrading my Home assistant OS from 9.5 to 10.2 (I skipped a few to be safe)
Owntone server gives the following error in the logs:

[2023-06-13 23:51:22] [  LOG]      web: Failed to create websocket context
[2023-06-13 23:51:22] [FATAL]    httpd: Websocket init failed
[2023-06-13 23:51:22] [FATAL]     main: HTTPd thread failed to start

When I try to open the Web-UI it sais: ‘502: Bad Gateway’

My Owntone settings are standard and I didn’t change anything else, any clues?
Thanks already,

My setup:
Raspberry Pi 4, 8gb running:
Home Assistant 2023.6.1
Supervisor 2023.06.2
Operating System 10.2
Frontend-versie: 20230608.0

Owntone server version: 28.2.20211118

Today at 2023.6.2 the issue persists.
I’ve found the following thread: Mosquitto and libwebsocket bump by rokam · Pull Request #2923 · home-assistant/addons · GitHub
Has it something to do with the problem I encounter , I have no clue. Should I better downgrade to OS 9.5?

Since I have no clue how to tackle this problem I’ve downgraded Ha OS back to v. 9.5. My Owntone server is now up and running again.
Eventually I would like to update my Ha OS so I still hope someone can help me figure out how to fix it in the future.

Update 2:
For now I’ve removed Owntone and installed ‘Music Assistant’

For me it does exactly what I need, control my Airplay Express, I am very happy with it.
It’s not a fix but a very nice workaround (upgrade even)

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