Conditional merge syntax does not work on ui-only reference field

Okay, let me see if I understand you correctly - you have a UI only reference field on a model, and you want to show a field editor section title based on that field (I’m guessing the field editor is on the model that has the UI only reference field). I couldn’t come up with a great example of a UI only reference field to test with, but from what I tried I could conditionally render a field editor section title. It always rendered to the falsy statement of the merge syntax, though, since UI only (not formula) fields always start out blank (even when I had a default value set; when I used a UI only formula field I could see the merge syntax evaluating both ways accordingly). Do you have a situation where the UI only reference field is defined / has a value in it? Am I understanding your use case correctly?