Line item page "Page Selectors" disappeared from my UX dashboard




I have a dashboard in the new UX interface, with a grid that contains 5 dimensions : TIME , WAREHOUSE, CLIENT, UNIT and LINE ITEMS. 


Usually the line items was present in the page selectors , but now he disappeared from the dashboard, 

I have the 4 other dimensions in the page selectors , but i can't find the line item selectors.


Is it a bug ? Or how i can fixed it ?