Yes, I do have a Panel with the PanelReminder EventName. I even tried p.GetView(0).Tag instead of p.Tag in the click event. Apparently, I don't "get" something and I think you know what it is! Please advise
In the layout file you should only have the views you want to add to the panel.
No panel in the layout file ! Then it should work.
As you already have a Panel with the same event name you have one instance too much.
In general it would be much easier for us to help you if you posted your project as a zip file. So we could see what you have done and how. And also test changes.