Here’s one for ya. I have several table views in my application that have been working fine since 4.0 and up…. so far. One table view in my app decided to inherit a clear background color for some reason.
XCode 4.3 (5.1 & 6.0) – fine
XCode 4.4 (5.1) – clear background
Xcode 4.4 (6.0) – fine
I only add the fact that 6.0 works because it worked in prior versions of 5.1 in Lion. Upgraded to Mountain Lion GM and Xcode 4.4. Nuttin. I’ve attached screenshots showing my splash screen from when I start the app or logout peeking through what should be a pushed view from my nav controller. I’m not setting the background color of any table view in my app. None of the other views are affected and are being pushed the same way.
Maybe it is just something goofy in ML and Xcode 4.4, but I thought I would check and see if it is possible there is something I missed. I’ll likely be filing a radar for this as well. Seems kinda fishy to me.

I finally got my background to use the default background. In interface builder, I had the tableview style as grouped, and it showed grouped. When I selected it and chose grouped again, the background reset to the normal default and I haven’t had any issues with it since.
I’m going to chalk this one up to opening projects up between the production Xcode and beta versions. I think something just got out of sync in the xib file. Nothing fancy needed to fix this one. Thank you to everyone that answered.