I'm having the problem described in the title of the post, basically, despite having +/- 180 rotation variance (I tried all the axes, despite Z being the only one I'd want anything to be rotated around), the region generation plops everything in with 0.000 rotation around every axis, making everything look overly cookie cutter and just all around bad.

Has anyone else encountered this? Found a solution?

If not, I'll go back to fiddling!

Why have you posted this twice in the same forum. See your other post from earlier today -

http://www.gamesas.com/topic/1409556-objects-not-rotating-in-region-generation/

Strange, posted that, and right after my internet went down. When it came back up I looked on my My Content page under topics and it wasn't there so I assumed it hadn't gone through.

Read the post by Maegfaer in http://www.gamesas.com/topic/1404696-region-editor-is-not-rotating-objects-on-z-axis/ for a good solution.