Business objects relations. Show in table.

Summary:

Hello I would thank any help with the following.

I do not know if bug or I am missing some step.

I have a table with 2 relations as shown.

I can query the data using endpoint.

But when I want to show the table with columns from related tables I cannot.

Here! I cannot see the expected structure to take my fields.

I have done this before and worked ok.

I expect something similar to:

to pickup the columns of the related tables.

Am I missing some step? Have I done something wrongl?

Attached zip with code.

Thanks.

Juan