ubuntu-bug -w crashes

[Henning Sprang]

When running ubuntu-bug -w i get the dialog that tells me to select the window to report a bug about, but after clicking this window, in the terminal where I started ubuntu-bug -w, i only get:

(apport-gtk:26977): Gdk-CRITICAL **: 00:11:09.451: gdk_wayland_window_set_dbus_properties_libgtk_only: assertion 'GDK_IS_WAYLAND_WINDOW (window)' failed
Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 597, in <module>
    app.run_argv()
  File "/usr/lib/python3/dist-packages/apport/ui.py", line 745, in run_argv
    _('xprop failed to determine process ID of the window') + '\n\n' + err)
TypeError: can only concatenate str (not "bytes") to str

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: apport 2.20.11-0ubuntu65.1
ProcVersionSignature: Ubuntu 5.11.0-25.27-lowlatency 5.11.22
Uname: Linux 5.11.0-25-lowlatency x86_64
ApportLog:

ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 28 00:12:06 2021
InstallationDate: Installed on 2020-04-12 (470 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: Upgraded to hirsute on 2021-07-27 (0 days ago)