I am using Stripe Payments 2.0.11 and Subscriptions 2.0.2
The only other thing is that I am still using the Stripe legacy API, because I want customers to be able to subscribe using Apple Pay.
I’ve changed that to the new API and I’ll keep an eye on any failed payments from now on. But losing Apple Pay is a real pain.
Unfortunately I don’t have a card that I can test this with, but if you have one I could send you a link to a subscription creation page and you can see if you get notified that a subscription has been created?