Fixed on develop (live at next publish). The in-room roster was reporting every nearby player's name as "Player" (it read a name field that didn't exist), so buddy-add's name lookup never matched someone standing right beside you and fell through to the offline check. Now reads the real remote name; whisper-by-name had the same bug and is fixed too. Re-test after next publish.

Live in the latest publish — marking this Fixed. Thanks for the report!