Hi!
I would indicate a problem that should be adjusted in the grid.
When the search returns no results on the grid, the image of loading the next request does not appear, being hidden by the header.
The problem is that the image is displayed as the background of the grid div, but when the text "Displaying {start} - {end} of {count} result (s). " is not being displayed, the empty space where you can see the background is occupied by the header.
It would be interesting that this operation was modified or the empty space at the top always exists.