[kronolith] Sharing a calendar to a group

[John H. Bennett III]

Resending to list to see if I can possibly get an answer or some direction.

I am using the latest 2.1.x versions of the various horde modules.

I need a little help trying to share a calendar to a group.  In the
horde/administration/groups, I have created a group and added members to the
group.  The members are added manually using user at domain.com.

Next I go to Kronolith, and create a new calendar.  Then I go to edit the
permissions and in the groups list there is nothing selectable in the drop
down box.

What have I done wrong?

Thanks,
John Bennett