Android Media Hub Display Problem

Hi,

I have an Android media hub (Android 5.1.1) and I'm having a display or web UI question / problem. If you look at the attached screen shot, you can see that app shortcuts are covered up by the + sign. For some reason this just started and I can't figure out how to correct. It was working as expected the other day - when I added apps to the 'desktop' [that were already installed or new app I installed], the + sign moved to the right and new apps were populated properly. For some reason, the behavior has changed

Does anyone know how to fix? Thanks in advance!