I have a calendar called "TODO" in the Google Calendar app, where I usually place all-day events with various repeatedness (usually 1 month). I add a specific notification to send me an email and an alert 1 day before the full-day event happens.
Some days/weeks pass, I go to any of the created events and all notifications for that event are gone. This is very furstrating.
I suspect it might have to do with me syncing this, and other calendars from Google Calendar with Apple's own Calendar app (iOS and MacOS). I went through all settings but could not find anything that could be responsible for that.
Is there a setting for this somewhere that I'm missing?