Gutenbee Gallery – Justification option broken

When I tried to create a new Gutenbee Gallery today, I can’t access the option for a Justified gallery. The menu box (for Columns vs. Justified) won’t show me any option but Columns when I click on it. There is an arrow showing a pull-down menu, but it no longer works.

Older Gutenbee galleries, created when the pull-down menu worked and I was able to choose to Justify the images, are still apparently working fine and justifying the images, but I can’t create a new justified gallery.

My WordPress was updated this week by the folks at GoDaddy. I don’t know if something in that update broke Gutenbee in some way. My Gutenbee plugin is up-to-date (version 2.15.0).