Hi there.
I have a Classic Block Grid that contained 4 square photos. The grid used to render 1x4 or 2x2, depending on screen width, and lastly 4x1 (stacked on top of each other) on mobile. I hadn’t changed any of the images since the major Cornerstone update.
Today, I change out a photo, and the grid now only renders at 1 x 2 x 1. I’ve attached a screenshot (blocking out the content of the photos). This is now how it looks regardless of screen size or device:

How can I get the Block Grid to achieve its former functioning? Or is there a better way to achieve this effect? Thank you!