Sound Juicer - no mp3 selection, have all required packages

Question

I can export to MP3 in Audacity just fine. I also swear I saw mp3 in the dropdown menu last week, but haven't actually ripped any CDs on this Arch install. I have the ugly plugins, I have lame, I have codecs, but the mpeg encoding options don't show up in Sound Juicer.
What might I be missing?

Answer 1

This is at startup (disk didn't read properly on startup...)
** (sound-juicer:5026): WARNING **: Widget (GtkEntry) has more than one label
MusicBrainz: Connecting to http://musicbrainz.org:80
MusicBrainz: GET /ws/1/release/?type=xml&discid=VxyTR0mDChmLF..pTwcGePRZi0s-
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_unref: assertion `cursor != NULL' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
MusicBrainz: Connecting to http://musicbrainz.org:80
MusicBrainz: GET /ws/1/release/?type=xml&discid=VxyTR0mDChmLF..pTwcGePRZi0s-
MusicBrainz: Result: 0 (200 )
MusicBrainz: Status: 200
MusicBrainz: Response:
<?xml version="1.0" encoding="UTF-8"?><metadata xmlns="http://musicbrainz.org/ns/mmd-1.0#" xmlns:ext="http://musicbrainz.org/ns/ext-1.0#"><release-list /></metadata>
MusicBrainz: Result: 0 (200 )
MusicBrainz: Status: 200
MusicBrainz: Response:
<?xml version="1.0" encoding="UTF-8"?><metadata xmlns="http://musicbrainz.org/ns/mmd-1.0#" xmlns:ext="http://musicbrainz.org/ns/ext-1.0#"><release-list /></metadata>
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_unref: assertion `cursor != NULL' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_unref: assertion `cursor != NULL' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_display: assertion `GTK_IS_WIDGET (widget)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_new_for_display: assertion `GDK_IS_DISPLAY (display)' failed
(sound-juicer:5026): Gdk-CRITICAL **: gdk_cursor_unref: assertion `cursor != NULL' failed
(sound-juicer:5026): GLib-GObject-WARNING **: invalid cast from `GdkX11Window' to `GtkWidget'
Lots of this kind of error:
(sound-juicer:5026): Gtk-CRITICAL **: gtk_widget_get_accessible: assertion `GTK_IS_WIDGET (widget)' failed
** (sound-juicer:5026): CRITICAL **: atk_object_add_relationship: assertion `ATK_IS_OBJECT (object)' failed
Then when selecting profiles:
nothing new in the terminal
This is the line for the gstreamer pipeline I'm using:
audio/x-raw-int,rate=44100,channels=2 ! lamemp3enc name=enc target=0 quality=alt-preset standard ! xingmux ! id3v2mux
Is there something missing there? It shouldn't matter right? the dropdown menu should still show something right?
For what it's worth the default Mpeg2 profile also doesn't show.
M4A, OGG, FLAC, all show properly.