Essential grid- all images not same size

Hi there! I am hoping someone can help with this issue… I am creating a page that will replace my current home page.
I wanted a blog grid under my header, with images that are the same size, both in their width and their height.
From the WP back editor, I have set the template to “blog-grid”. The “Grid Blog Template Settings” are set to “standard” (not masonry).
I have reviewed the Essential Grid tutorial videos, but all I have found was a width:height ratio (currently set 1:1).
Can we get the images to all appear the same size? Currently, from my display, I see that some images are the same, but a few are left with different heights (causing a bad masonry appearance).
Any help would be greatly appreciated. Thanks in advance and best regards!