Background of the issue:
In my website, there is a custom post type called school. French is the default language and English is the secondary language. I have set up school post type to - Translatable (use translation if available or fallback to default language). The URL for the single school page is hidden link (English version) and it is working properly.
Symptoms:
If I visit the page as hidden link (French version), it results in a 404 error.
Questions:
How can I fix the 404 error for the French version of the single school page?
Should I use rewrite rules or is there any other solution?