It looks like this thread was moved from a different forum, so I never got a notice that this thread exists.

I guess that you are referring to the image caption that is displayed in a long column.

Until the theme is updated with a fix for this, you can easily fix it by doing the following:

Go to Appearance > Customize
Open the Additional CSS panel.
Add this code and Publish the changes:

.wp-block-image .aligncenter>figcaption, .wp-block-image .alignleft>figcaption, .wp-block-image .alignright>figcaption { display: block; }

This should do the trick.

Best regards,
Dumitru B.