[BUG] iTunes Plugin Not Loading

[ukiews]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Earlier today I've been able to find the iTunes plugin under the Plugins section on my UGREEN DX2800 NAS:

However, after restarting the container, the plugin section is empty:

The server version was not updated.

Steps To Reproduce

The plex server was initially migrated from a Mac OS version.

The com.plexapp.system.log might have some clues:

2025-11-20 23:19:00,927 (7f8097018808) :  DEBUG (core:150) - Finished starting framework core
2025-11-20 23:19:00,928 (7f8097018808) :  DEBUG (core:560) - Loading plug-in code
2025-11-20 23:19:00,928 (7f8093a2eb38) :  ERROR (networking:197) - Error opening URL 'http://127.0.0.1:32400/:/plugins/com.plexapp.system/messaging/function/X0J1bmRsZVNlcnZpY2U6QWxsU2VydmljZXM_/Y2VyZWFsMQoxCmxpc3QKMApyMAo_/Y2VyZWFsMQoxCmRpY3QKMApyMAo_'
2025-11-20 23:19:00,929 (7f80939e8b38) :  ERROR (networking:197) - Error opening URL 'http://127.0.0.1:32400'
2025-11-20 23:19:00,932 (7f8093a2eb38) :  ERROR (services:272) - Unable to load services from system. Loading from the current bundle only.
2025-11-20 23:19:00,932 (7f80939e8b38) :  WARNING (core:541) - Unable to retrieve the machine identifier or server version.

...

2025-11-20 23:19:01,427 (7f8097018808) :  DEBUG (streamservice:18) - Starting the stream service
2025-11-20 23:19:01,427 (7f8097018808) :  CRITICAL (runtime:709) - Private handlers are no longer supported; couldn't register <bound method StreamService.token_handler of <streamservice.StreamService object at 0x7f8093665c10>>
2025-11-20 23:19:01,428 (7f809383ab38) :  DEBUG (networking:144) - Requesting 'http://127.0.0.1:32400/servers'
2025-11-20 23:19:01,428 (7f8097018808) :  DEBUG (runtime:1150) - Scheduled a timed thread named 'invalidation_timer'
2025-11-20 23:19:01,429 (7f8097018808) :  DEBUG (proxyservice:12) - Starting the proxy service
2025-11-20 23:19:01,429 (7f8093880b38) :  DEBUG (runtime:1117) - Created a thread named 'ensure_agent_info_exists_inner'
2025-11-20 23:19:01,430 (7f809383ab38) :  ERROR (networking:197) - Error opening URL 'http://127.0.0.1:32400/servers'
2025-11-20 23:19:01,432 (7f8097018808) :  DEBUG (runtime:1117) - Created a thread named 'update_attribution_flags_inner'
2025-11-20 23:19:01,432 (7f8097018808) :  INFO (core:611) - Started plug-in
2025-11-20 23:19:01,433 (7f8097018808) :  DEBUG (socketinterface:160) - Starting socket server
2025-11-20 23:19:01,433 (7f8093880b38) :  DEBUG (runtime:1117) - Created a thread named 'ensure_agent_info_exists_inner'
2025-11-20 23:19:01,434 (7f8097018808) :  DEBUG (runtime:1117) - Created a thread named 'start'
2025-11-20 23:19:01,435 (7f8097018808) :  INFO (socketinterface:184) - Socket server started on port 38335
2025-11-20 23:19:01,435 (7f8097018808) :  INFO (pipeinterface:25) - Entering run loop
2025-11-20 23:19:01,435 (7f8093880b38) :  DEBUG (runtime:1117) - Created a thread named 'ensure_agent_info_exists_inner'
2025-11-20 23:19:01,435 (7f809383ab38) :  CRITICAL (runtime:1128) - Exception in thread named 'refresh_servers' (most recent call last):
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/runtime.py", line 1126, in _start_thread
    f(*args, **kwargs)
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/System.bundle/Contents/Code/peerservice.py", line 169, in refresh_servers
    servers_el = self.get_servers_el()
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/System.bundle/Contents/Code/peerservice.py", line 165, in get_servers_el
    return XML.ElementFromURL('http://127.0.0.1:32400/servers', cacheTime = 0)
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/api/parsekit.py", line 344, in ElementFromURL
    method=method,
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/api/networkkit.py", line 67, in _http_request
    req = self._core.networking.http_request(url, *args, **kwargs)
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py", line 352, in http_request
    return HTTPRequest(self._core, url, data, h, url_cache, encoding, errors, timeout, immediate, sleep, opener, follow_redirects, method)
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py", line 119, in __init__
    self.load()
  File "/usr/lib/plexmediaserver/Resources/Plug-ins-f737b826c/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py", line 159, in load
    f = self._opener.open(req, timeout=self._timeout)
  File "/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py", line 435, in open
    response = meth(req, response)
  File "/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py", line 548, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py", line 473, in error
    return self._call_chain(*args)
  File "/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py", line 556, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 503: Service Unavailable

Environment

- OS: UGREEN
- How docker service was installed: docker compose

CPU architecture

x86-64

Docker creation

services:
  plex:
    image: lscr.io/linuxserver/plex:latest
    container_name: plex
    network_mode: host
    privileged: true
    devices:
      - /dev/dri:/dev/dri
    environment:
      - PUID=1000
      - PGID=10 
      - TZ=America/New_York
      - VERSION=docker
    volumes:
      - /volume1/Plex/Config:/config
      - /volume1/Plex:/plex
    restart: unless-stopped

Container logs

plex  | GID/UID
plex  | ───────────────────────────────────────
plex  | 
plex  | User UID:    1000
plex  | User GID:    10
plex  | ───────────────────────────────────────
plex  | Linuxserver.io version: 1.42.2.10156-f737b826c-ls285
plex  | Build-date: 2025-11-10T09:30:56+00:00
plex  | ───────────────────────────────────────
plex  |     
plex  | **** Server already claimed ****
plex  | **** permissions for /dev/dri/renderD128 are good ****
plex  | **** permissions for /dev/dri/
card0 are good ****
plex  | Docker is used for versioning skip update check
plex  | [custom-init] No custom files found, skipping...
plex  | Starting Plex Media Server. . . (you can ignore the libusb_init error)
plex  | Connection to localhost (::1) 32400 port [tcp/*] succeeded!
plex  | [ls.io-init] done.

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