Morphology LiteSite Having trouble with image post thumbnail

Hello,

I am using the latest version of Morphology Lite. I am experiencing a similar issue to the one described in this forum post here: https://wordpress.org/support/topic/tile-layout-home-page-showing-blank-spaces/

I have uploaded 6 different image posts with sizes above 570 x 570 pix. For example,
570 x 758
570 x 760
2448 x 2447

Now I have uploaded one image post at two different sizes: 1250 x 1250 and 570 x 570. I am stumped because it is still leaving about a quarter of an inch white space at the bottom of the image. I added in the custom CSS as put forward by @alchymyth in the forum but it isn’t helping. Here is what it looks like: https://beautyinbuildings.com/2016/10/01/beauty-in-buildings-com/

Am I missing something? I just tried another image at 1809 x 1809 and the same thing happened.

If someone could also please tell me how to upload a screenshot as an attachment to a support forum post, I’d really appreciate it.

Thanks in advance,

Alice