What I did: trying to use the Reminders integration
What happened: on both MacOS and iOS my Reminder Lists are not visible. On the Mac I am prompted to check my Internet Account settings to ensure that I have Reminders in my iCloud account (I am syncing Notes between devices using iCloud). However, this is the case. I also have allowed Agenda to access my Reminders in IOS and MacOS.
Things that might be helpful to know (Agenda version, OS and model, etc):
MacOS - Agenda 6.0
iOS - whichever is current today