View Mode: Layers get stuck at 50%

I’ve have an STL that I loaded from Thingiverse. It is a 10 inch moon and the file size is about 50 Meg. It was able to slice the file and save the gcode (which ended up at 449 Meg.)

When I select the View Mode: Layers it gets to the 50% mark fairly quickly and then gets stuck. I’ve waited several minutes and I don’t see it getting any further. Are certain STL files simply too large for the application?