Update A row with client side ajax implemetation

Hi,

We are trying to achieve the same behaviour like this example:
https://editor.datatables.net/examples/inline-editing/simple.html
where an update to a cell returns from the server the updated row which is than refreshed.
The difference is that we are implementing the calls to the server using a REST API and than passing the updated row to the datatable using the
$('#XXX').DataTable().row(rowIndex).data(result);
We receive an error:
https://datatables.net/manual/tech-notes/4

A few things that we don't recieve:
1. We don't see the nice refresh row effect.
2. When we try to edit the cell again it opens for edit, but throws the a null pointer exception in the following line:
// Remove from DOM, keeping event handlers, and include text nodes in remove
var children = node.contents().detach();

Thanks,
Yishay