@jkim_wikimedia has advised that this month, yet again, the headers in the stripe import have changed! I think it should be possible for Jerry to import by copying this month's data into last month's csv & upload

But this does rather make me think a deep-dive into converting the imports to a drupal-8-ready extension & maybe finding a way to deal with this might a good thing to look into over the holiday period when collaborative tasks are harder to work on