Using 2 Second Renewal seems very unreliable

I using a ‘Subscription Renewal Rate’ of ‘Any Renewal Every 2 Seconds’ in Xcode, and what I’m seeing from RevenueCat is very unreliable, both in the behavior of the SDK, and on the web console.  Is this renewal rate simply too fast to reliably use?  (I’m completely open to the possibility of Apple’s sandbox servers not being efficient enough to support this.  In fact, it’s probably true).

Here’s an example of what I see (the final ‘Opted-out of renewal’ is expected, I think)