It looks like SAB isn’t returning any history when the category value series is provided to the api call. I tested this directly from my browser, and “slots” is an empty element when category is included, but when i remove category from the URL the slots shows my download history as it is meant to. Looks like this is something SAB will have to look at.
I imagine i will need to just use the drone factory for the time being? I will get in touch with the SAB ppl to find out why this is happening. I double checked in the JSON history that is returned (when no category is specified), and each of the slot items in question is definitely showing the series category, so something is definitely amiss.