Bug in Vizlib pivot table grid

Hi community!

I am developping a Qlik application for a client and I am using the Vizlib Pivot Table in one of my sheets. My problem is that when I first load the sheet, the grid in the table is visible and all works and displays as I expect it to do. But, whenever I scroll in the table, the grid disappears from the measures part. I joined two images to the post, one after the first load where the grid is displayed perfectly, and one after using the scroll bar where you can see that the grid is no more displayed. 

Thank you in advance.