When you start the program, all viewports work fine. But the moment you click into each of them, only the first viewport you clicked in will have the proper cursors (like the four-arrows when moving, that kind of thing). Does anyone have a fix for this? It's getting a little hard to tell if I'm grabbing something properly, especially with smaller brushes.

Also, the model viewer doesn't seem to be able to load models from the VPKs (it loads a directory list, but then tells me it doesn't exist when I attempt to enter one)

As a sidenote, the cubemap generation still doesn't work, but I found a fix for that - open your map file in PakRat and delete all texture files. Then it'll allow you to generate them properly. No idea why this is, but there we go.