Popups not displaying correctly in Collector

[ChandlerCallison]

We created a map in ArcGIS Pro and configured custom attribute displays for some features, one of which pulls data from a related table. The popup works great in Pro. We published the map through portal and the popups work great in the web map. Once we get the map onto Collector, though, the fields that show attributes from the related table are blank, even though it displayed correctly in Pro and the web map. If you scroll down past all the attributes you can open up the related record, so I know it's there, but the info just doesn't get pulled to the popup in Collector. What's going on?

[DougBrowning]

Are you using Arcade and FeatureSet?  Or relationship/0/field?  Both do not work.

See this post

https://community.esri.com/thread/229709-are-the-arcade-featureset-functions-supported-in-collector 

[ChandlerCallison]

We're using relationship/0/field. We configured the popups in Pro and published it, but we switched the fields to relationship/0/field when we couldn't get the collector to display the popups correctly. We were hoping that would fix it, but no such luck. Seems like something ESRI would having working by now.

[DougBrowning]

Yea it has been over a year now and I have yet to even get a response.  Relationships classes can be so powerful but they seem to be mostly ignored during development.  We had the same issues with the webmap for a long time but they at least seem ok now.