Since last weeks, the subcategory links at category pages behave peculiarly. When any category is expanded through the drop-down mark, the list of categories is redistributed to list columns and the category name with the expand/roll-up mark is moved. Such behavior make very uncomfortable the subsequent roll-up of the row.
Similarly, when I click (by the right mouse button) to one of the sub-subcategories from the expanded list, the whole expanded block skip (dodge) to the next list column, in some cases.