The Divi blog grid layout does have a limitation, when you have featured images of different sizes, and post titles/excerpts which are different lengths, it can cause the grid to look uneven – even with the ‘Equalize Column Heights’ option checked.

Go to Blog Module Settings > Custom CSS and give the module the new CSS Class “new_grid_blog”. “et_pb_blog_grid”.

Add the following code to your Custom CSS box:

@media only screen and (min-width: 768px) {
.et_new_grid_blog .et_pb_post {
min-height: 520px;