This is not Stripe only, I have the same issue with Algolia.
In my case it just times out and don’t update Algolia.
My function is a simple database trigger, that updates the object to Algolia with “saveObject”. The function runs fine, nothing is slow regarding the required dependency, then, at the index.saveObject the functions just hangs out forever, and Algolia is not even updated.
My guess it’s something regarding network. But looks very much like this issue with Stripe.
It’s a very important fix, basically kills the Realm Functions, and I am about to integrate Stripe too.