I've just downloaded City Engine and am having issues with the "Save Snapshot ..." tool. Whenever I try to save a snapshot, the resulting image is black with a few things that decide to render. However; the actual models in the viewer look normal.
I'm completely new to City Engine and have no idea what is going on. I've tried playing around with the lighting, but that doesn't seem to make any difference. The image I've attached shows the resulting snapshot.
Unsure if this matters, but I have over 107 warnings in the "show problems" window. This is from just opening the ".cej" scene from the "Tutorial_16_Urban_Planning__2016_1" which is also where the scene in the image is from.

City Engine 2017.1.3674
Windows 8.1 64-bit
Intel(R) Core(TM) i5-4590 Processor
8 GB RAM