Hey Oli,
I’ve managed to reproduce the bug, thank you for the additional information! It has to do with the way WordPress query needs to be accessed in order to get the current page number – for one or another reason the code differs on static front page versus any other part of the website. I’ve prepared a fix – please download this archive, unzip it, and upload the resulting file into the following directory inside your WP installation: /wp-content/themes/Kanso/includes/pager/ – replacing the existing file. Let me know if it corrects the error!
Sincerely,
Andrii / Satori Studio