I had that happen to me - and I took it in to be adjusted. The LBS guy wanted to make sure I knew how to shift it.
When I saw the same thing happen to an experienced rider today on an Amira with Apex, I knew it wasn't just me!
To the OP - I love my Ruby!!
When I first bought my Charge home, it needed a bunch of front derailleur tweaking. (It didn't help that I'm not all that experienced with SRAM.) It's better now, but I think it'll need more in not too long.