Informer App receives notifications but none listed in app
I just recently started using the Informer app for Android. I have Repetier-Server 0.75 running on a RPi3. I successfully created a group on the phone and entered the group ID in the server. The test message sent a notification to the app. In the notification on the phone, it said Test Notification, or something similar. But nothing listed in the app, just a blank screen (says Repetier-Informer at the top and has the 5 icons across the bottom).
So when a print is finished, my phone gets a notification saying the print is finished (in the notification pull-down drawer). But still the app has a blank screen. Do I need to change a setting? Should the notifications be stored in a list in the app?
Thanks for the help.