Onhover functionality for a 2 dimensional Graph with 2 properties ( Y - axis left and Y - axis right ) is not working properly

When i move the cursor on a 2-D graph with 2 Y axis ,.it sholud show 2 properties of current pixel value. But in the Onhover panel it only shows one value which is for the Y- axis left and Y -axis right is not shown.

Can anyone help me here.