I’m Using ArcGIS Pro 2.2 to Publish a web layer to both a map service and a feature service to an onsite Portal (10.6.1). The data source is Postgres 10.3. The popup is configured in ArcGIS Pro and some of the values are decoded and others are not (highlighted are not decoded):

When I access the popup in the map service layer in the Portal default map viewer the decodes are correct:

Then when I access the popup in the feature service layer in the Portal default map viewer those decodes are correct but other ones are no longer decoded:

I’m concerned about the inconsistency if there is a problem with the way the domains are defined I would expect that we would see the same issues. Any suggestions on how to fix this or is this a bug?