Local data source behaves weirdly

In my new project I have a local data source that populates A data viewerlist .
I’m using the current blocks to populate the data source .

the idea is I’m pulling data from another data source to update a google sheet then using the same data to create a new row in the second data source .
the problem now that there are no data appearing in the data viewer list connected to the second data source
Any idea what is the problem.