Wiki alphabetical manual page order not being respected

I have created 4 wiki pages: Guide d'installation

Essayer Trisquel sans l'installer

• Essayer Trisquel sans l'installer
• Essayer Trisquel Mini sans l'installer

Installation guidée

• Installation de Trisquel via une interface graphique
• Installation de Trisquel Mini via une interface graphique

I have followed the instructions as indicated make the wiki page an enfant of https://trisquel.info/fr/wiki/liste-des-manuels-par-ordre-alphab%C3%A9tique

The 2 pages withe "E" "Essayer" are in the alpahbetical order

But adding 2 pages with "I" "Installation" does not respect the alphabetical order on the botom of the page https://trisquel.info/fr/wiki/liste-des-manuels-par-ordre-alphab%C3%A9tique despite the fact that the pages are created in the same way as the "E" "Essayer pages"

I will be adding 2 or 3 more "installation pages"(text mode /LVM Install)

to note that ""créer de la musique, métadonnée, traitement de texte, Gnu/Linux, trisquel-mini""

are not either in alphabetical order

Thanks for any info when possible of course ;-)