When used with PHP7.4 you see an error "Notice: Trying to access array offset on value of type int in format_string() (line 1844 of /code/includes/bootstrap.inc).". This is caused by a type in hook_help() for admin/help#simplenews where the t() array is incorrectly defined.
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.