I am using a raspberry 3 with LE 9.2.1. with Wifi connected and ethernet directly connected to another raspberry via regular cat5e cable.
This is a very abnormal scenario and I think LibreELEC cannot handle it very well.
Right now, the cpu usage is at 90% (I can see on screen, since logging is enabled)
This issue is occurring since I have created the conman_main.conf and set connmann to prefer wifi over ethernet.
I am unable to upload logs I am afraid, since Kodi is out of control.
I am not experiencing this issue if I use the raspberry in a managed network having not the wifi to be the primary internet connection and ethernet attached as a direct static route.
I was just able to get the logs after I did a reboot.