"Approve All" and "Deny All" do not work when items are grouped by column in IT Shop.
To reproduce the issue:
Filter by a column and then click on "Group by this column":

Expand the relevant row:

Click "Approve all" - the first row "Approve" is selected but "Approve all" stays blank:

Click "Approve all" again and it gets selected and the first row stays selected:

The same is true for "Deny all".