The TOC isn't getting auto-updated

The TOC which I have now with me does not have any leader lines and while I tried to change the way it looks, by going to the reference pages and adding new tab stops with left, right with leader lines.

Now when I go to the body pages I don't see the update happening automatically, instead I had to enter the "Tab" before each page number in TOC.

Tried by updating the whole book, but still it doesn't fetch me the desired result.

Please help me with:

where am I going wrong

the probable solution

Screen Shot of the current TOC:

Screen shot after editing the reference page and pressing the Tab key on the body pages accordingly:

I am using FM unstructured.

Regards,

Manohar.