I have a puzzle.
As I have described in an earlier post I have a wordpress MU install with 15 sites. Polylang is set on each one of them. The setup was on my local machine where I can associate without a sweat thanks to your amazing plugin a template page per language.
I have just transferred everything to the production site, no problems for 14 sites. And then there is the one that apply the same template to all four languages.
I have deleted the site recreated it from scratch, created the four pages applied the four templates(so far so good) and then when I link them, the page I link from will force its template on the others.
If I am in the English page, it will apply its template to the three others, If I go to Spanish page to amend, the Spanish template is applied to all others. The funny thing is that each page has four sub-pages with its own template and they are linked to the other sub-pages without problem.
I installed another instance of wordpress on the production machine, same problem with this site (1 out of 15) which works perfectly locally.
Any hint on where I should look to debug?