Alignment of Post Lists when adding Posts

Hi there,

With the Upfront/Fixer, see the attached.

The newest post is the top left, but when that happened it really should have the top 2nd and 3rd be inline with the 2nd ROW. In other words, the newest lone post should (I think) would look a lot better by itself at the top without having any gaps as one scrolls down. How can we fix that?