[BUG] 400 error after updating to 1.41.9.9961 on docker using Unraid

[cfus98]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Updated to 1.41.9 that was pushed out 4 hours ago. I am using the linuxserver.io plex image on Unraid.

It was working perfectly until the update. I have rebooted the server and still get a 400 error.

The odd part is I can still access the server on a mobile device and play video. Does this error indicate that the web server in the container is not working?

Thanks for you help with this.

Expected Behavior

Plex Web should be visible instead of a 400 error.

Steps To Reproduce

Error 400 trying to access the plex web page even though I can still play video on mobile clients.

Environment

- OS:Unraid
- How docker service was installed:Unraid template using linuxserver.io official docker image

CPU architecture

x86-64

Docker creation

Unraid template using linuxserver.io official docker image

Container logs

text  error  warn  system  array  login  

Connection to localhost (127.0.0.1) 32400 port [tcp/*] succeeded!
[migrations] started
[migrations] no migrations found
───────────────────────────────────────

      ██╗     ███████╗██╗ ██████╗
      ██║     ██╔════╝██║██╔═══██╗
      ██║     ███████╗██║██║   ██║
      ██║     ╚════██║██║██║   ██║
      ███████╗███████║██║╚██████╔╝
      ╚══════╝╚══════╝╚═╝ ╚═════╝

   Brought to you by linuxserver.io
───────────────────────────────────────

To support LSIO projects visit:
https://www.linuxserver.io/donate/

───────────────────────────────────────
GID/UID
───────────────────────────────────────

User UID:    99
User GID:    100
───────────────────────────────────────
Linuxserver.io version: 1.41.9.9961-46083195d-ls273
Build-date: 2025-07-15T15:38:30+00:00
───────────────────────────────────────
    
Setting permissions on /transcode
**** Server already claimed ****
**** adding /dev/dri/renderD129 to video group root with id 0 ****
**** permissions for /dev/dri/card1 are good ****
**** creating video group videobtmx with id 18 ****
**** adding /dev/dri/renderD128 to video group videobtmx with id 18 ****
**** permissions for /dev/dri/card0 are good ****
Docker is used for versioning skip update check
[custom-init] No custom files found, skipping...
Starting Plex Media Server. . . (you can ignore the libusb_init error)
[ls.io-init] done.
Critical: libusb_init failed

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[cfus98]

Resolved -- It was cookies -- deleting the last 24h of cookies solved the problem.

[cfus98]

Resolved -- It was cookies -- deleting the last 24h of cookies solved the problem.