When adding more than one bus in LED settings, editing the type is only possible for the last bus.
This is to ensure proper hardware initialisation.
However, this is confusing to users and should be handled differently. Instead of restricting it in the settings, a variable should be added to the LED settings page that keeps track of the problematic changes i.e. the bus type and if necessary, display a warning and issue a reboot.
@willmmiles do you know which settings or combinations are critical in this regard?