WP REST API - "rest_user_cannot_view" ONLY on specific users

so upon requesting users through REST API - I get the

code    "rest_user_cannot_view"
message "Sorry, you are not allowed to list users."
data    
status  401

for example https://www.example.com/en/wp-json/wp/v2/users/36

The problem is though, that I can request many of the users - but since adding new users, I get this error.

Tried incognito, using an OLD user - resulted into the same thing. No new plugins were added recently.