fix probe refresh

Author: chrishalcrow

spikeinterface_gui/probeview.py

@@ -180,6 +180,7 @@ def _qt_refresh(self):
             for label in self.channel_labels:
                 label.hide()
 
+        self._qt_on_unit_visibility_changed()
 
     def _qt_update_channel_visibility_from_roi(self, emit_signals=False):
         r, x, y = circle_from_roi(self.roi_channel)