dhtmlXGrid - No recognizing edit.

I have a grid with a few columns “edtxt”.

When I first edit a row that has never been updated, it turns everything in the row bold and this data is sent to the server when I use sendData().

But when I load existing data and then edit it, the row does not turn bold and no data is send to the server. Why doesn’t it recognize that an existing row was changed?

Which version of dhtmlxgrid you are using?
The same scenario can’t be reconstructed locally.

Please be sure that each row in grid has ID and IDs are unique.