wingpanel crashed with SIGSEGV in g_type_check_instance_is_fundamentally_a(), when trying to open volume panel and when moving a window that is directly below the wingpanel

[Ramiro]

The wingpanel is unresponsive to clicks on the Power, Notification, Battery(this shouldn't appear since Im on a desktop), Network, and volume panels. I dont know what triggered this unresponsiveness.

ProblemType: Crash
DistroRelease: elementary 0.4
Package: wingpanel 0.4~r128-0+pkg28~daily~ubuntu0.4.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
Uname: Linux 4.4.0-24-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CrashCounter: 1
CrashDB: wingpanel
CurrentDesktop: Pantheon
Date: Sat Jun 18 11:35:07 2016
ExecutablePath: /usr/bin/wingpanel
GSettings: org.pantheon.desktop.wingpanel use-transparency true
GsettingsChanges:

InstallationDate: Installed on 2016-06-17 (1 days ago)
InstallationMedia: elementary OS 0.4 "Loki" - Daily amd64 (20160613)
ProcCmdline: wingpanel
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f579ec2c7e5 <g_type_check_instance_is_fundamentally_a+5>: mov (%rdi),%rax
 PC (0x7f579ec2c7e5) ok
 source "(%rdi)" (0x00000030) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: wingpanel
StacktraceTop:
 g_type_check_instance_is_fundamentally_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_object_ref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgee-0.8.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/libgee-0.8.so.2
 ?? () from /usr/lib/x86_64-linux-gnu/libgee-0.8.so.2
Title: wingpanel crashed with SIGSEGV in g_type_check_instance_is_fundamentally_a()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Cody Garver (codygarver)]

StacktraceTop:
 g_type_check_instance_is_fundamentally_a (type_instance=type_instance@entry=0x30, fundamental_type=fundamental_type@entry=80) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./gobject/gtype.c:4031
 g_object_ref (_object=0x30) at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./gobject/gobject.c:3049
 _g_object_ref0 (self=<optimized out>) at hashmap.c:1916
 gee_hash_map_entry_entry_for (k_type=64, k_dup_func=0x7f579e94f460 <g_strdup>, k_destroy_func=0x7f579e9367a0 <g_free>, v_type=32336304, v_dup_func=0x406080 <g_object_ref@plt>, v_destroy_func=0x406280 <g_object_unref@plt>, node=0x23667d0) at hashmap.c:2120
 gee_hash_map_entry_iterator_real_foreach (base=0x2855350, f=0x7f579e6dfaf0 <___lambda6__gee_forall_func>, f_target=0x1f17460) at hashmap.c:4370