Cannot start CEF Debugging after reboot

[m3e-g]

Your system information

• Steam client version: 1748914100
• SteamOS version: 3.7.8
• Opted into Steam client beta?: No
• Opted into SteamOS beta?: No
• Have you checked for updates in Settings > System?: Yes

Please describe your issue in as much detail as possible:

After reboot CEF Debugging starts automatically but fails due to port restart limit being hit.

(deck@m3e-deck ~)$ sudo journalctl -b -u steam-web-debug-portforward.service
Jun 11 17:21:59 m3e-deck systemd[1]: Started "Portforward CEF remote debug port".
Jun 11 17:21:59 m3e-deck socat[1526]: 2025/06/11 17:21:59 socat[1526] E bind(6, {AF=2 0.0.0.0:8081}, 16): Address already in use
Jun 11 17:21:59 m3e-deck systemd[1]: steam-web-debug-portforward.service: Main process exited, code=exited, status=1/FAILURE
Jun 11 17:21:59 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Scheduled restart job, restart counter is at 1.
Jun 11 17:22:00 m3e-deck systemd[1]: Started "Portforward CEF remote debug port".
Jun 11 17:22:00 m3e-deck socat[1546]: 2025/06/11 17:22:00 socat[1546] E bind(6, {AF=2 0.0.0.0:8081}, 16): Address already in use
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Main process exited, code=exited, status=1/FAILURE
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Scheduled restart job, restart counter is at 2.
Jun 11 17:22:00 m3e-deck systemd[1]: Started "Portforward CEF remote debug port".
Jun 11 17:22:00 m3e-deck socat[1566]: 2025/06/11 17:22:00 socat[1566] E bind(6, {AF=2 0.0.0.0:8081}, 16): Address already in use
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Main process exited, code=exited, status=1/FAILURE
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Scheduled restart job, restart counter is at 3.
Jun 11 17:22:00 m3e-deck systemd[1]: Started "Portforward CEF remote debug port".
Jun 11 17:22:00 m3e-deck socat[1644]: 2025/06/11 17:22:00 socat[1644] E bind(6, {AF=2 0.0.0.0:8081}, 16): Address already in use
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Main process exited, code=exited, status=1/FAILURE
Jun 11 17:22:00 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Scheduled restart job, restart counter is at 4.
Jun 11 17:22:01 m3e-deck systemd[1]: Started "Portforward CEF remote debug port".
Jun 11 17:22:01 m3e-deck socat[1655]: 2025/06/11 17:22:01 socat[1655] E bind(6, {AF=2 0.0.0.0:8081}, 16): Address already in use
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Main process exited, code=exited, status=1/FAILURE
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Scheduled restart job, restart counter is at 5.
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Start request repeated too quickly.
Jun 11 17:22:01 m3e-deck systemd[1]: steam-web-debug-portforward.service: Failed with result 'exit-code'.
Jun 11 17:22:01 m3e-deck systemd[1]: Failed to start "Portforward CEF remote debug port".

If I start the service manually after boot it starts OK

Steps for reproducing this issue:

1. Enable CEF Debugging in the developer options
2. Restart Steam Deck
3. Connect via ssh and type: systemctl status steam-web-debug-portforward.service