not working with image and media&text blocks

Hi
First, thanks for this nice plugin.
I’m using WP 5.9.3, Lightbox for Gallery & Image Block 1.11, and Gutenberg Blocks extensions. My theme is Kemet (site in development not yet on line)

I’ve seen that “You always have to select Link to → Media File for all of your Galleries & Images to work properly”

Your plugin works well for images gallery but fails with image block as well as media&text. Curiously while in WP editor, I do not have a “Link to → Media File” in image block.

I checked that corresponding div have class “wp-block-image” “wp-block-media-text__media”
<figure class="wp-block-media-text__media" style="background-image:url(https://dev-zzz.fr/wp-content/uploads/2022/03/IMG_1794-300x200.jpg)....></figure>
<figure class="wp-block-image size-medium">....</figure>

Please, how can I further investigate/debug this?
Regards, Christophe