OK we've done some more investigating and it appears that it's not necessarily something we did in our game play screen, the weird artifacts we see during screen rotations happen on every screen, they're just more pronounced on the game play screen and is much more noticeable. I'm attaching some screen shots to show what I mean, but keep in mind that I changed the sprites around and removed some stuff to hide exactly what we're up to (NDA and all).
This is what our game (with changed sprites) looks like normally:

However, during transitions things get jumbled. These are a couple of screen grabs that show what happens during the transition going to both landscape and portrait:


Now remember that this kind of wonkyness is happening in every screen, it's just not noticeable except on our main game screen. And it's not just our game either, I tried the "screencap during rotation" move on the included "Example 0 - Control Widgets" NGUI example scene. Here's how it looks:

Still, even though that's how it looked it when being screen capped you couldn't notice it during the actual transition. This is what's happening to our game play screen but with noticeable effects.
Is there any way to solve or deal with this?
Thanks!!!-Mike