Edit: a few minutes later I discovered that there was an extra plot “automatically” plotted above my original campfire plot. Maybe when I placed the beacon??
It would have to be a new beacon outside of a plotted are. Still have to put fuel in to start a new beacon, placing a beacon within a plot will not work.
Edit: I have gleam club. I still need to add fuel to all of my new beacons.
Looks like you have a situation where Gleam Club auto-fuels your beacon, but the objective would not recognise this as it requires a specific type of fuel item to be added. A workaround would involve placing another Beacon Control outside of a plot as already mentioned. Nevertheless, it is an issue, so it’s been added to the database.