I also have a fan related oddity, it starts “jittering” (seems that its trying to start) as displayed in the video at:
https://drive.google.com/file/d/1qXqE9sCJ8uZ0M-hCjzuPg_RSs9iD8qm-/view?usp=sharing
Also when I monitor the core temperatures in Open Hardware Monitor (https://openhardwaremonitor.org/downloads/) it only starts working at 60 º. But from the documentation (https://wiki.seeedstudio.com/ODYSSEY-X86J4105/#fan-is-not-turning-on), it should have started working at 45-50 º, so I’m kinda lost. Is this expected behavior? Or its something that will also fixed by the firmware update that is coming?