Getting the Skin settings to work was the biggest challenge while building the Kodi 17 skin.
I’ll have a close look soon why particulairly the FIS block isn’t saved automaticly.
The quick fix is to reload the skin after you changed the setting (keyboard press F5).
This makes that the setting is directly written to the settings.xml file and therefor available after a reboot.
By the way; if it is so busy on your can-network, maybe your R8 sends additional data to play with.
If you don’t mind I’ll make a new logging model to test this on your bus.