Girish, here are the 2 views of the same screen. Since it's not possible to make the type inside of the grids a different color or underline, I put a white rectangle over the type and then put a separate piece of text over that. It aligns perfectly in the wireframe view and the preview view. However, when I share the link with someone else, they see the second view.
You can see that the widths of the columns themselves have changed from one view to the other. That is having the effect of cutting off some text (as in the first column) and moving things around significantly. I would expect the widths of the columns to stay the same.
As a side note, it would be great to be able to apply styles like color and bold or underline to specific items in a grid.