Problem:
The user has a view that holds a map and display post markers. The view was not returning any results on the secondary language.
Solution:
It turns out to be an error in the user's translation workflow. The user was mixing manual translation and translation on the translation editor.
To fix the issue we had to remove the existing translations of the page and of the posts. Then we had to configure the location field to be copied instead of translated. Then translate the posts and the page using the translation editor.
Problem: We recently updated the site and now I cannot edit the post content. I see a message that Layouts are being used to design the site instead of a post editor.
Solution: Deactivate and delete the Toolset Layouts plugin.