xfce4-panel core dumps on quit

[Mario Charest]

Created a panel with only one launcher item. on xfce4-panel --quit I get

GLib-GObject:ERROR:../../../gobject/gtypemodule.c:119:g_type_module_finalize: assertion failed: (module->type_infos == NULL)
Bail out! GLib-GObject:ERROR:../../../gobject/gtypemodule.c:119:g_type_module_finalize: assertion failed: (module->type_infos == NULL)
Aborted (core dumped)

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xfce4-panel 4.18.4-1build2
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Tue Apr 16 14:54:16 2024
InstallationDate: Installed on 2024-04-15 (1 days ago)
InstallationMedia: Ubuntu-Server 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.1)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: xfce4-panel
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.cron.daily.apport: [deleted]

[Mario Charest (stayprivate)]

Core dump of xfce4-panel