Example of a user not being able to see posts because of incorrect language settings configuration: https://feddit.org/post/8656952

This has been fixed in version 0.19.9, but if your instance is running an older version that that, make sure to check that in your account language settings (the checklist, not the interface language):

• all the languages you speak are selected (for instance, Undetermined and English)
• or that you don't have anything selected (in that case, you are going to see all the languages)

Selecting a language is done by Ctrl + Click on a desktop