Noticed this trying to see online players of a guild.
/who does not show most players online that would match the search.
Can test it by finding someone online in the world from my same realm right in front of me, and /who can’t find them.
Yep, not able to see certain players with /who, including friends on my friends list.
According to an EU blue post, they’ve known and have been working on it since September. I would love an update.