So, finally have everyone in family on either 13 or 13.1 and Catalina Betas. Hit “upgrade” on Reminders.app and woke up this morning with Reminders apparently “upgraded.” Problem is, “upgrade” button still there and no matter how many times I “upgrade” the button comes back. Also, when mark a reminder as completed, not syncing across my own devices, not to mention shared lists with family. Anyone else experiencing this? Advice? I really don’t want to log out of iCloud and back in but I fear that is what I must do!