Column-Matic plugin conflicts with NGG 2.0

Column-Matic plugin conflicts with NexGen Gallery 2.0 Interestingly, only pages where Column-Matic shortcode is NOT used are broken. Thumblails are not displayed, only the code is visible instead.

thumbnails OK: https://levendulahazak.eu/lido-villa/
thumbnails NOT OK: https://levendulahazak.eu/csenge-kepek-panna/

Instead of the thumbnail image I get this:

title="101"
data-image-id='157'
rel=\"lightbox[4979d3a4e0388a0580c424905b4a584f]\">
title="101"
alt="101"
src="https://levendulahazak.eu/wp-content/gallery/csenge-ketagyas/thumbs/thumbs_101.jpg"
width="100"
height="75"
style="max-width:none;"
/>

https://www.ads-software.com/plugins/column-matic/