How to clear layout formatting for new paragraph?

I used the markdown layout tags to build a grid of images, but the last column formatting appears to be continuing to the following paragraph.

Scroll down here to see the example: https://semeiotica.com/

The markdown code is this:

{||||} ![1](/posts/crest/_cartouche.png)
    ![5](/posts/crest/_droplet2.png)
    ![8](/posts/crest/_sparc_logo.png)
{||||} ![3](/posts/crest/_gate2.png)
    ![6](/posts/crest/_NGI_logo200.png)
    ![9](/posts/crest/_KitLogo_Color@4x.png)
{||||} ![4](/posts/crest/_mondial.png)
    ![7](/posts/crest/_coclimate_logo_bl.png)
    ![10](/posts/crest/_ae_logo.png)
{||||} ![2](/posts/crest/_g.png)
    ![12](/posts/crest/_worldviews.png)
    ![11](/posts/crest/_genocartouche.png)

Is there any easy fix?