Sending nested data using Server Connect Form

Hello,
my goal is to send nested data to my API.

I’ve followed this post but despite following the instructions, the nested data itself appears as “” in the preview.

The structure is generated correctly like this:

image568×552 14.6 KB

I’ve defined the Input Data like this:

And the Linked Fields for the data are named according to the “name” property of the input field according to the proposed schema like this:

image1221×587 22 KB

So everything appears to be working as it should, up until the last step when I receive the results.

This is what the Payload looks like:

image734×186 5.15 KB

And this is the Preview:

Is it no longer working or does it work differently in newer versions of Wappler (I’m using 4.9.1)? What am I missing?