ibus-daemon crashed with SIGABRT in g_assertion_message()

Running Xubuntu 14.04

I had just quit frescobaldi, qsynth and qjackctl.

More likely to be one or both of the latter two, as I've used frescobaldi on its own with no problems with ibus.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: ibus 1.5.4-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic i686
ApportVersion: 2.13.2-0ubuntu2
Architecture: i386
Date: Thu Feb 6 18:59:41 2014
ExecutablePath: /usr/bin/ibus-daemon
ProcCmdline: /usr/bin/ibus-daemon --daemonize --xim
ProcEnviron:
 LANGUAGE=en_NZ:en
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_NZ.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: ibus
StacktraceTop:
 g_assertion_message () from /lib/i386-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/i386-linux-gnu/libglib-2.0.so.0
 ?? ()
 ?? ()
 ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
Title: ibus-daemon crashed with SIGABRT in g_assertion_message()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm lp lpadmin sudo