Cable / Wire Wizard - Color Column Bug?

After creating one cable entry, the color entry columns for the library look like the following.  I can no longer click in the box to select a color for the cable.  I can edit the column header, "Colour" to something else - there's no way this should happen.

This seems like a bug.  2017 SP4.1

It looks like I'll be editing XML by hand to add cables.

SolidworksRouting