Please tell me this issue is nearing a resolution. It has now plagued my site for 2 months. This is not the first issue I've encountered that has taken months to correct and my patience is wearing thin. I strongly recommend WPMUDEV hire more staff.
A workaround for this is to rebuild each archive category page in upfront using marketpress widgets or shortcode. If I want to make changes down the road to all the category pages, I find the "save all archives of this type" either does not update other categories or overrides the unique elements of the pages, essentially making it necessary to make changes to the archives individually. Not a huge problem when you're dealing with a handful of categories, but now I'm facing a project with hundreds of categories and subcategories and this workaround is no longer practical.
Ok. so I can use the "Payments - Before Due" notification specifically for the stripe subscriptions gateway users and the "Subscriptions - Before expires" would go to members who signed up to either subscriptions or single payment gateway. Single payers get one email, Subscribers get two. If that's the case, I could provide a more general "Subscriptions - Before expires" email and the "Payments - Before Due" would be specific to the subscription users. Am I missing something?