I have a repeating group that references a “Thing’s field”. It shows fine. The “Thing” has another field which is a reference to “OtherThing”. When I call “Thing’s OtherThing’s name” nothing is returned. I don’t see an issue with the data privacy. Suggestions?
What is the list you’re wanting to return in the repeating group? A list of Other Things’ names or a list of Things and in each cell display that cell’s Thing’s Other Thing’s name?
It’s hard to tell but what’s the Data Type of the repeating group that the RepeatingGroup_sRFX is in? Is the RepeatingGroup_sRFX referring to the cell data that it is in in any way? Can you share a link to the editor?
*If those constraints are trying to pull the same results of the cell that the RepeatingGroup_sRFX is in, you can change the data source from doing a search for, to “Current Cell’s[OtherThing]'s [Field that is Type SOWresponse]”? 
Thanks for the interest. I created live dummy accounts and logged in to the live app to see how it looked. Data shows fine. Submitted the issue as a bug report for the preview mode.