Alphabetical search order not working

wwd-theatre.uqam.ca/index.php?option=com...gory=content%3A19&cp [annee][]=2009&cp[categories_production][]=&cp[metteur_en_scene][]=&submit_search=

I'm not 100% sure, but it looks like results are first sorted by category and then alphabetically (that's default Custom Properties configuration).
Please check parameter 'Category ordering' in Custom Properties configuration, and set it to 'None'.

Also: what kind of multi-language setup are you using, if any?

I have set 'Category ordering' to 'None', 'Items ordering' to 'Alphabetical', 'Ordering field' to 'Title'.

On the results page, switching between 'Newest' and 'Oldest' is working. But as we switch to 'Alphabetical', we can see that it is not alphabetically ordered.

I have no multi-language setup since my site is not multi-langual.

Thanks for the info.
I believe there's a blank space at the beginning of the title of article 'Entre regard et regard'
Other articles look like this:

Solved.
Thank you very very much.