Related records Smart Editor WAB for developers 2.9

[EduardoAraujo1]

I have a 1:M relationship class between a stand alone table and a feature class and a 1:M realationship class beteween a feature class and a stand alone table.. I have added both the tables and the feature classes in a MXD and then published it. Created the webmap. When I configure the smart editor it only shows me the relationship between the feature class and the stand alone table. I cannot see the relationship between the stand alone table and the feature class.

The feature class is present on both relationships in one it is the parent (it works) and in the other it is the child (does not work). is that the expected behavior?

I took a look on the relationship class and they are pretty much the same

[EduardoAraujo1]

I have changed the relationship that was missing on the smart editor from 1:M (table to feature) to a 1:1 (feature to table) relationship class. Now it appears on the smart editor. Is that the correct approach? Only feature to table works? I also did a test with a feature to feature relationship class and it did not work as well.