mate-panel crashed with SIGSEGV in g_pattern_match()

[Gene Soo]

1)
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04

2)
mate-panel:
  Installed: 1.12.1-1
  Candidate: 1.12.1-1
  Version table:
 *** 1.12.1-1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

3&4) Unknown Error

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: mate-panel 1.12.1-1
ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
Uname: Linux 4.4.0-2-generic x86_64
ApportVersion: 2.19.4-0ubuntu2
Architecture: amd64
CrashCounter: 1
CurrentDesktop: MATE
Date: Tue Feb 2 07:45:54 2016
ExecutablePath: /usr/bin/mate-panel
InstallationDate: Installed on 2016-02-01 (0 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160201)
ProcCmdline: mate-panel
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f774a3e6859 <g_pattern_match+57>: cmp %esi,0x8(%rdi)
 PC (0x7f774a3e6859) ok
 source "%esi" ok
 destination "0x8(%rdi)" (0x1d2aa3008) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: mate-panel
StacktraceTop:
 g_pattern_match () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
 gtk_rc_get_style () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
Title: mate-panel crashed with SIGSEGV in g_pattern_match()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Launchpad Janitor (janitor)]

[Expired for mate-panel (Ubuntu) because there has been no activity for 60 days.]