Trying RL on a Raspberry Pi

I followed the directions at this link to get RL running on a Pi 3:

Then I used the directions at this link to get Gnome running on it:

It was successful for the most part, but when I try to open the Settings at top right on the menu bar, it looks like it tries to open, then aborts without an error or anything. I can use nm-connection-editor to set up networking at least, but I would like to know what causes Settings not to come up.