Diagram/model view does not maintain table's position

Hi!

Since a few months ago, when I arrange the tables a certain way in the model view, close the pbix file and reopen it, they position of the tables is rearranged completely. Is there a way to keep the tables as I arrange them? when you are working with a complex model is very annoying to have to rearrange every time you open the model.

Thank you very much!!