Solved! Go to Solution.
Everything looked great in Collector. We edited a streetlight point and everything changed with the fields that had domains. - and not for the better - the fields went from domains to text boxes and the text box field we are using for symbology went to a domain like pick list. Because the fields in "Collector" went from domains to text boxes, I then looked at the map and tried to edit a point using ArcGIS online and everything there was fine. The fields with domains still had the domain selection.
Luci, I did not read which collector you are seeing domain issues on.
Either way, it sounds like you changed symbology based on another field at some point through map viewer. Your changes overwrite the feature layer types and you loose all of your domains assigned to feature template fields. The domains still exist for the fields, but your feature templates have their own domain rules.
If you are courageous enough, you can use REST to update the feature service definition so that each "type" inherits the domain for each field. Pain in the rear though.