SFX (SmartDashboard 2.0) Exception when loading a save from older build

[JohnGilb]

We spent a bit of time creating a large SFX layout. However, now that we have the newest build of SFX, we hit problems when loading that file (it is attached to this post).

Also, we no longer have a tab called LiveWindow. Was that functionality removed, or this another error behavior?

The exception and SFX layout are attached.

Worst case, we'll just redo the entire layout in the new version... but we'd like to avoid that if possible. =]