To make the plugin compatible with the most themes (and other plugins), I adopted the use of get_the_post_thumbnail_url.
get_the_post_thumbnail_url($post->ID, 'thumbnail')
Thank you for the patience.
Due to this pandemic, the whole of Brazil is closed and as an IT employee I am having to work twice as much. But I think I have achieved some success here (v0.2.1).
Anything do not hesitate to contact me, here or by email (duscci@gmail.com), if you prefer (sometimes I answer faster)
Sorry for that.
In this update, I have not yet resolved that issue, but I will investigate and see what I can do.
