Stacktrace:

  at (wrapper managed-to-native) GLib.Value.g_value_set_object (GLib.Value&,intptr) <0x00004>
  at (wrapper managed-to-native) GLib.Value.g_value_set_object (GLib.Value&,intptr) <0xffffffff>
  at GLib.Value..ctor (GLib.Object) <0x0008c>
  at Gtk.Image.set_Pixbuf (Gdk.Pixbuf) <0x00021>
  at SmC.VisualisationUI.set_Picture (Gdk.Pixbuf) <0x00013>
  at SmC.SmCRunner.UpdatePicture () <0x000e2>
  at SmC.SmCRunner.PushData (SmC.API.AudioData) <0x0016b>
  at PulseOutputFetcher.UpdateStatus () <0x0023a>
  at (wrapper delegate-invoke) System.MulticastDelegate.invoke_bool () <0xffffffff>
  at TimeoutProxy.Handler () <0x0002a>
  at (wrapper native-to-managed) TimeoutProxy.Handler () <0xffffffff>
  at (wrapper managed-to-native) Gtk.Application.gtk_main () <0x00004>
  at (wrapper managed-to-native) Gtk.Application.gtk_main () <0xffffffff>
  at Gtk.Application.Run () <0x00007>
  at SmC.MainClass.Main (string[]) <0x00097>
  at (wrapper runtime-invoke) System.Object.runtime_invoke_void_string[] (object,intptr,intptr,intptr) <0xffffffff>