pre_get_posts not working in admin upload.php mode=grid

Hi,
I ave a filter function on the media items in the library. It works fine on the ‘list’ view, but when i switch to ‘grid’ view the filter function is not working. The filtering is done like this:

$query->set( 'tax_query',array(
	array(
      	'taxonomy' 	=> 'instellingen',
      	'terms'    	=> array($instId),
    ),
));

I think the grid fiew is loaded by ajax? and is bypassing the pre_get_posts action.
Is this a bug? or is there a workaround?