appmenu-mate crashed with SIGSEGV in g_type_check_instance()

1. 18.04
2. 0.6.92+repack1-3ubuntu1 500
3. I'm not sure
4. Just an error. I didn't see anything change visabily

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: mate-applet-appmenu 0.6.92+repack1-3ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: MATE
Date: Thu Mar 22 21:02:59 2018
ExecutablePath: /usr/lib/mate-panel/appmenu-mate
InstallationDate: Installed on 2018-03-22 (0 days ago)
InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180307.1)
ProcCmdline: /usr/lib/mate-panel/appmenu-mate
ProcEnviron:
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
 LANGUAGE=en_AU:en
 LANG=en_AU.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f7945758189 <g_type_check_instance+25>: mov (%rax),%rdi
 PC (0x7f7945758189) ok
 source "(%rax)" (0x0000117d) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: vala-panel-appmenu
StacktraceTop:
 g_type_check_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? ()
 ?? ()
Title: appmenu-mate crashed with SIGSEGV in g_type_check_instance()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
XsessionErrors:
 mate-session[1195]: WARNING: Unable to find provider '' of required component 'dock'
 (process:1798): indicator-sound-WARNING **: 21:02:16.523: volume-control-pulse.vala:744: Unable to connect to dbus server at 'unix:path=/run/user/1000/pulse/dbus-socket': Could not connect: No such file or directory
 (nm-applet:1711): Gtk-WARNING **: 21:02:16.731: Can't set a parent on widget which has a parent