Hmm, sounds worrying. I do back up my layouts occasionally, and haven't had this happen to me, but it's something I'll watch for.
A couple of years back I had a really strange one where trying out some fashionable new launcher (can't remember which) it messed something up so that my Nova setup didn't work properly afterwards (small things rather than totally broken, but enough to be an irritant). App sandboxing should mean that one app can't mess up another's configuration, so perhaps they actually managed to mess up some system thing that affected both, but that would also be weird. Wish I could remember the details. But unless you've been playing with different launchers this won't be relevant (and I think I was very unlucky with this anyway).
A couple of years back I had a really strange one where trying out some fashionable new launcher (can't remember which) it messed something up so that my Nova setup didn't work properly afterwards (small things rather than totally broken, but enough to be an irritant). App sandboxing should mean that one app can't mess up another's configuration, so perhaps they actually managed to mess up some system thing that affected both, but that would also be weird. Wish I could remember the details. But unless you've been playing with different launchers this won't be relevant (and I think I was very unlucky with this anyway).
