I've been using Community Builder for quite a while now and have had no problems.
I recently went to add another tab to my navigation menu (to point to a "Salesforce Object" page and was surprised to find that I was unable to add one of my custom objects. I have been able to do this with multiple custom objects before. For some reason this custom object (Issue) is not on the list of available objects.
Does anyone know why this would happen?
Upon further investigation I found that indeed other custom objects don't appear in the list as well. Only certain custom objects are there while others are missing. I tried finding a common thread (relationship, created date, etc.) to no avail.