Hi Alex,
that’s an interesting issue. A small observation- it seems that your situation differs from the thread that you’ve linked at the beginning- they got an missing body (the red question mark), while you get the body not displayed (blank white space).
Could you try to dump the resulting table into a file to check if the cell has any contents? And maybe check what does the “Spec” tab show for the possible values in the body column. I wonder if maybe the problem is not with wrong type of returned payload, but rather with displaying the content, similar to what has been observed in Problem while concatenating via the GroupBy node Value 0 ?
Cheers,
Mischa