FeatureSetByRelationshipName a profile variable in Styles expression window, but seemingly does not work

[jdelprete]

Hello,

I am curious why FeatureSetByRelationshipName is available as a profile variable while editing in the Styles expression window. I am able to write an expression that seems to return the desired output, but am unable to click "Done" to save the expression because I get an error that "'FeatureSetByRelationshipName' is not defined."

I am able to write the same expression in the pop-ups expression window.

Are related features completely unusable within the styles profile, or am I just using them incorrectly? If they aren't usable there, why are related features included in the profile's variables? 

Thanks! 

[RienkZijlstraMourik]

I'm facing the same problem. It's strange that the code returns a result, but for some reason can't be applied as a style.