Problem with flex block 1 for related article section

Hello,

I noticed a problem with flex block 1 when used to display related artciles. This is what happens:

In the related articles section that I have created using the flex block 1 shortcode, if the length of all the article titles do not match (e.g.- one article title is taking three lines while others are taking only two), it creates an empty space within the block and one article is pushed down. Here’s the video.

When the length is same for all the titles, nothing happens, everything fine. But that is not possible for a website. Title length can differ.

Particularly, this problem arises when I set 3 modules per row and the number of articles is 6. I have not tried other settings because I only and strictly want to display 6 articles with 3 in each row.

Please help resolving the issue.

Thanks