Hi,
Had a quick look at the antiaris demo. Looks nice!
In an archive view for tags (and possible some other list views, as well)
There’s not “read more” button for posts with only an excerpt.
(you aren’t totally lost, though, you can click on the post title or the comment button (if commenting is allowed.) But I’d expect a button (or at least the ellips “…” to be linked)
Here’s where I was looking:
http://dev.khairul-syahir.com/wordpress/antiaris/index.php/tag/chattels/