A few months ago my reminders changed. When I swipe the Edge panel left I want to see them immediately. But now they appear blank, and I have to click the word Reminder to see them. If I open the Reminders app they appear OK.
So when I swipe right I see this:
I then click Reminder and it shows my reminders.
It's set to also show them on the lock screen, which it doesn't do (shows blank as above):