I’m using the Grid Layout under Archive Layout for my blog posts. However, the latest blog post is in its own row, then we’ve got a couple of rows with 2 blog posts, followed by the last blog post that gets fetched by itself again.
Basically something like this:
Can you please deactivate all your plugins and check if the issue still persists?
If the issues is fixed by deactivating a plugin, activate your plugins one by one to find which plugin is causing the issue exactly.
If that does not help. Please contact us at support[at]axlethemes.com , we will look into your site.