This will be addressed in version 3.3.

can you email us a one page sample app that does this or share an app using DropBox?

Might be related to our iOS7 fixes.  We will get this resolved ASAP.

Responded to in the comments section

Answered in the comments section.

We are going to be adding a feature in a future version that allows you to import a page from an existing app.  This I believe would be a better way to handle your request.

Responded to in the comments.

"You can change the size of your app in the app properties (the blue cube on the top panel of Design Mode), and selecting iPad 4 should get rid of the error. We usually recommend using the lower resolution of 72 ppi and building for the 1024x768 size if the app will be for the iPad (this is the default size when you open InteractBuilder) because images at 72 ppi look very crisp, and higher resolutions will only make the file size a lot larger, which can always make an app take longer to download."

Keep in mind if you do decide to use the higher resolution setup which you can do following the directions above, when the app is published for non retina iPad's it will still work well because we will proportionally resize all the graphics to fit the non retina screens.

So it's completely up to you what resolution/PPI to use.   It's a balance between keeping things as small as possible for the user but also making sure that you are not sacrificing any quality.  At the end of the day, the InteractBuilder provides you the options to develop however you prefer.  We are all about choices!

You can change the size of your app in the app properties (the blue cube on the top panel of Design Mode), and selecting iPad 4 should get rid of the error. We usually recommend using the lower resolution of 72 ppi and building for the 1024x768 size if the app will be for the iPad (this is the default size when you open InteractBuilder) because images at 72 ppi look very crisp, and higher resolutions will only make the file size a lot larger, which can always make an app take longer to download.