JB launcher update to 4.2 wipes home screen...?

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http://forums.androidcentral.com – Hi... My Asus just updated me to 4.2 JB from 4.1 and asked if I wanted to use the new updated Launcher. I said yes. When it rebooted, all the home screen customization, folders, etc that I've done was gone. So, I reverted. Is that an inevitable part of the updated launcher? If so, I think I'll pass, but what if anything am I missing? From what I saw, not much. (HowTos)