Brian,
With the latest build these files are not generating automatically. I can generate them by using the update buttons and I have the switched turned on. I would expect that they would generate at least once a day based on what I have seen on the forum so far. Looking in the docs for these and not finding much. Maybe I am not looking in the right place and setting this feature up wrong or have the wrong expectation on how it should work.
It is amazing, our fire season does not start for a couple of months and we have already had a couple of big fires.
Mike - N7DQ