title: NI Reaktor Audio Input Vertical Line
body: <p>I recently restartet patching in Reaktor and found something strange. In one of my Primary structures there is an input pin switching its icon to vertical line every now and then when I edit the structure. It somehow depends on the audio processing sequence.</p>
  
  <p>Unfortunately I cannot post an image of the structure, because this needs more reputation... however, does anyone know what is the point with this port? It feels spooky. Thanks!</p>