budgie-panel crashed with SIGSEGV in g_hash_table_remove()

[Nelson Onofre]

not sure what caused the error. When I closed Firefox I saw the error message

ProblemType: Crash
DistroRelease: Ubuntu 20.10
Package: budgie-core 10.5.1+git20200824-2
ProcVersionSignature: Ubuntu 5.8.0-20.21-generic 5.8.10
Uname: Linux 5.8.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu49
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: Budgie:GNOME
Date: Mon Oct 5 21:45:01 2020
ExecutablePath: /usr/bin/budgie-panel
InstallationDate: Installed on 2020-10-05 (0 days ago)
InstallationMedia: Ubuntu-Budgie 20.10 "Groovy Gorilla" - Beta amd64 (20201005)
ProcCmdline: budgie-panel --replace &
ProcEnviron:
 SHELL=/bin/bash
 LANGUAGE=en_US
 LANG=en_US.UTF-8
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
Signal: 11
SourcePackage: budgie-desktop
StacktraceTop:
 g_hash_table_remove () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libwnck-3.so.0
 ?? () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_object_unref () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: budgie-panel crashed with SIGSEGV in g_hash_table_remove()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
separator:

[Apport retracing service (apport)]

StacktraceTop:
 g_hash_table_remove () from /tmp/apport_sandbox__bij7tvh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6600.0
 window_weak_notify_cb (data=<optimized out>, where_the_window_was=0x5586ec93a100) at ../libwnck/class-group.c:514
 weak_refs_notify () from /tmp/apport_sandbox__bij7tvh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6600.0
 g_data_set_internal () from /tmp/apport_sandbox__bij7tvh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6600.0
 g_object_unref () from /tmp/apport_sandbox__bij7tvh/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.6600.0

[fossfreedom (fossfreedom)]

actually looks like a budgie-visualspace issue

So I am guessing you were moving between workspaces using the panel visualspace applet? Or doing something that was workspace related?