For several days I have not received notifications for the start of an event. I’ve installed on a second device - same result. I’ve uninstalled/reinstalled on my phone. No improvement. If I change settings to ask to set a reminder I am not asked. Even though I have specified additions to my calendar, none are added. If I set to default 15 minute reminders there still are none. App is allowed to run in background, battery optimisation disabled, app not closed. It does not help.
This was all working OK until mid December. Then I had some days away from Zwift and now reminders are completely broken. I have to use Alexa to set reminders for my rides. The app is useless.