Multilinguage loc url not working as expected

[timotheegoguely]

Hi,

I'm using your promising plugin on this trilingual website: https://correspondances.ch/sitemap.xml

The sitemapindex looks fine, but when I look inside each language sitemap, all <loc> urls start with the default language https://correspondances.ch/fr instead of their corresponding languages: https://correspondances.ch/de and https://correspondances.ch/en.

If it helps, here is the beginning of my 3 languages config files:

<?php

return [
    'code' => 'fr',
    'name' => 'Français',
    'default' => true,
    'direction' => 'ltr',
    'locale' => [
        'LC_ALL' => 'fr_FR'
    ],
    'url' => '/fr',

<?php

return [
    'code' => 'en',
    'name' => 'English',
    'default' => false,
    'direction' => 'ltr',
    'locale' => [
        'LC_ALL' => 'en_US'
    ],
    'url' => '/en',

<?php

return [
    'code' => 'de',
    'name' => 'Deutsch',
    'default' => false,
    'direction' => 'ltr',
    'locale' => [
        'LC_ALL' => 'de_DE'
    ],
    'url' => '/de',

What am I doing wrong? 🤔