DaiBando on "[Plugin: Polylang] Link between languages gone after upgrade to 1.5.2"

Hi guys

After upgrading to 1.5.2 the link between my two languages has gone.

I have a site with Welsh and English pages and they both still exist in the pages list in WP but they have lost their relationship with each other.

here is my site:
http://dysgubro.org.uk/site/?page_id=5

https://wordpress.org/plugins/polylang/