AsaBradley replied
I did an save/update through the regular WordPress editor but am still having the same problem. See homepage at http://www.asamariabradley.com/.
Update: It seems to be specific to my computer only. The widget shows up on the mobile version and also on another computer, same browser as I'm using while developing (Chrome). So it must be a cashe or reloading thing. I'll work on it some more, but I can see the widget just fine on at least two other devices so it can't be the theme's problem. :-)
Thanks for all your help!