Hi
I Found Gridview bug.
A phenomenon in which a blank row appears in the gridview when the database of the same index is called.The itemsource of gridview uses observablecollection and is loaded from database. If data of the same index is loaded, it is broken. Attach pictures
Can you try setting the GroupRenderMode property of RadGridView to Flat and see if this helps? If not, can you share some code reproducing the issue?