* don't show metronome popup just because metronome is active in backend

web/app/assets/javascripts/react-components/helpers/MixerHelper.js.coffee

@@ -421,7 +421,7 @@ MIX_MODES = context.JK.MIX_MODES;
 
   resolveMetronome: () ->
 
-    return null if @metronomeTrackMixers.length == 0
+    return null if @metronomeTrackMixers.length == 0 || !@session.isMetronomeOpen()
 
     mixer = @metronomeTrackMixers[0]
 

web/app/assets/javascripts/react-components/helpers/SessionHelper.js.coffee

@@ -28,13 +28,7 @@ context = window
 
   # if any participant has the metronome open, then we say this session has the metronome open
   isMetronomeOpen: () ->
-    metronomeOpen = false;
-    for participant in @participants()
-      if participant.metronome_open
-        metronomeOpen = true
-        break
-
-    metronomeOpen
+    @session? && @session.metronome_active
 
   isPlayingRecording: () ->
     # this is the server's state; there is no guarantee that the local tracks