Why wont "missing" TV shows get automatically downloaded for latest TV season?

I have an black exclamation mark symbol (missing) for the “status” of TV shows that already aired. I can manually search and download the episode.

I have a long list of missing shows under the “Missing” category of NZBDrone. Currently, I am only using the womble indexer and also a custom one I added (with my respective API key). I’m not even sure if my custom NZB indexer works or not.

It would be great to know what i’m doing wrong; and exactly how to fix it.

You will need to search for them, drone doesn’t automatically search for any missing episodes at this time. You can search for an entire season or the whole series from the details page for that series.

How drone finds episodes: https://github.com/NzbDrone/NzbDrone/wiki/FAQ#how-does-nzbdrone-find-new-episodes

As for testing the indexer, I’d suggest doing a manual search (within drone) for a particular episode, Womble’s doesn’t support searching so any results would come from your other indexer, if you get no results (and the episode is listed on the indexer), check the logs for any errors.