Is adding subscriber to group compatible with Stripe's pricing table?

Someone purchased my Discourse-created product+plan over the weekend, and they were not added to my specified group. So it seems that editing the product+plan in Stripe after creating it in Discourse somehow breaks this integration

I’ve also just tested this myself by buying a subscription, and I’m not added to the specified group

If anyone can advise how to test this further to figure out where things go wrong, I’m happy to do so

I’m also going to investigate other ways of integrating Stripe payments with Discourse