So...I was waiting for the update before addressing this.
It seems that if you have songs in your set that use the metronome panned to one side meant for your reference only...the first click of the metronome in the set, from any song, causes the metronome to not only bleed, but to be played at full volume out of the other channel for the first click. Subsequent songs do not bleed but if you back out of the show and return to it, the next metronome you click allows the click to bleed full through the other channel.
I'm using an iPad Air through an Alesis io dock. Click panned left. Left channel goes only to my IEM set up (nothing to house) but my right channel goes to the house and my IEM set up because I run recordings/tracks during our show with track on right click in left. "Recorded" clicks do not bleed over into right. ONLY the internal metronome from SLM and only on the first time you hit the metronome in any song in the show for the one FIRST click. Subsequent songs do not do this.
Any thoughts?