This is now fixed in 34ac29fcce, please check with the next unstable build (should be ready for deployment in ~45min, also on try).
In the process of implementing this, I’ve also refactored how fetching and parsing subscriptions work under the hood - I’ve tested them for all cases from the other thread, but maybe I’ve missed something. Would love a second pair of testing on this.
Looks like try was unable to send emails at all, and hence no reminders were processed. I’ve fixed that now and confirmed it works. Please check again.