compiz crashed with SIGSEGV in nux::Focusable::SetFocused()

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ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.34-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.36-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
CrashCounter: 1
Date: Sat Mar 19 10:05:02 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=es_CO:en
 LANG=es_CO.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: nux
StacktraceTop:
 nux::Focusable::SetFocused(bool) () from /usr/lib/libnux-0.9.so.0
 nux::WindowThread::SetFocusedArea(nux::Area*) () from /usr/lib/libnux-0.9.so.0
 nux::View::DoSetFocused(bool) () from /usr/lib/libnux-0.9.so.0
 nux::TextEntry::DoSetFocused(bool) () from /usr/lib/libnux-0.9.so.0
 nux::Focusable::SetFocused(bool) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in nux::Focusable::SetFocused()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:1457): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (<unknown>:1451): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.SectionsModel is in the past. Ignoring transaction.
 (<unknown>:1451): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.GroupsModel is in the past. Ignoring transaction.
 (<unknown>:1451): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.GlobalGroupsModel is in the past. Ignoring transaction.

[Apport retracing service (apport)]

StacktraceTop:
 nux::Focusable::SetFocused (this=0x9d58060, focused=false) at ./Focusable.cpp:33
 nux::WindowThread::SetFocusedArea (this=0x9443e50, focused_area=0x9856eb8) at ./WindowThread.cpp:464
 nux::View::DoSetFocused (this=0x9856eb8, focused=true) at ./View.cpp:527
 nux::TextEntry::DoSetFocused (this=0x9856eb8, focused=true) at ./TextEntry.cpp:206
 nux::Focusable::SetFocused (this=0x9856ef4, focused=true) at ./Focusable.cpp:33