Hi, a little curiosity, until now I didn’t have a problem with whispers. I just created one on a post I authored as admin, and the whisper appears in the post. However, as soon as I refresh the page, it disappears - it’s not deleted since it appears in my activity. But it does disappear from the display. Weird, is’nt it? 
After testing whispers do not appear after topic cooked when the Discourse Post Voting plugin is enabled in that category.
Happens in safe mode too.
Whispers and small action posts (like auto bumps or pins) are only visible in the “activity” view of a topic where post voting is enabled.
Thank you for your reply. it explains the behavior but it poses some fairly significant problems firstly, if there is only one initial message in a discussion and no reply, the whispers will never be visible even though they exist secondly, by default we are in voting mode and not by activity, so the whispers will never be visible either.
