The Artsmart plugin is free from Cineversity when you set up even a free account. I'll PM you a link. But, that plugin is only used for the Illustrator logo later in the scene. It allows you to import any vector, add depth, space out the layers, even import the colors. Anyway, that wouldn't have anything to do with the lighting I see in your test. That doesn't make sense.
Seems like... wait. I got it. I used an IES file for the light objects. It lives in the Visualize.lib4d, but you should have that if you have Studio. Maybe you didn't install the Content Browser libraries? Just go to update and if you don't have them already, you'll see them listed and just click update. That particular library is around 3.5 GB. I don't know how to extract that one file from the library.
Worst case, you can turn off the IES function.