
Nautilus window hangs and fails to respond until killed if "Properties" is selected for files
of types: FLV, MP3, SWF, WAV and maybe others. I launched nautilus from a terminal to capture
the following data:

$ nautilus --version
GNOME nautilus 3.10.1
$ uname -a
Linux localhost.localdomain 3.13.6-200.fc20.x86_64 #1 SMP Fri Mar 7 17:02:28 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
$ nautilus &
[1] 3434
$ Initializing nautilus-sound-converter extension
Initializing nautilus-open-terminal extension
[Nautilus Terminal] I: Initializing the Nautilus extension
sys:1: Warning: cannot register existing type 'GstObject'
sys:1: Warning: g_once_init_leave: assertion 'result != 0' failed
sys:1: Warning: g_type_register_static: assertion 'parent_type > 0' failed
sys:1: Warning: g_object_new: assertion 'G_TYPE_IS_OBJECT (object_type)' failed

(nautilus:3434): GStreamer-CRITICAL **: gst_object_ref: assertion 'object != NULL' failed

(nautilus:3434): GStreamer-CRITICAL **: gst_allocator_register: assertion 'allocator != NULL' failed

(nautilus:3434): GStreamer-CRITICAL **: gst_object_ref: assertion 'object != NULL' failed
sys:1: Warning: cannot register existing type 'GstFormat'
sys:1: Warning: cannot retrieve class for invalid (unclassed) type '<invalid>'
sys:1: Warning: g_boxed_type_register_static: assertion 'g_type_from_name (name) == 0' failed

kill %1
$ 

