ubuntu-bug remains on "detecting data from the system" - cancel button doesn't work

Description: Ubuntu 20.04.1 LTS
Release: 20.04

version:
2020.08.20+git968d4a4

steps:
- terminal: ubuntu-bug
- display (X.org)
- the dialog "retrieving the informationn about the problem in progress" appear and it stay as is for minutes.
I need to close the previous window "Apport" to close it.

Lenovo thikcpad e495.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: apport 2.20.11-0ubuntu27.8
ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55
Uname: Linux 5.4.0-45-generic x86_64
ApportLog:
 ERROR: apport (pid 2845) Sun Sep 6 09:45:36 2020: called for pid 828, signal 11, core limit 0, dump mode 1
 ERROR: apport (pid 2845) Sun Sep 6 09:45:36 2020: executable: /usr/sbin/gdm3 (command line "/usr/sbin/gdm3")
 ERROR: apport (pid 2845) Sun Sep 6 09:45:36 2020: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
 ERROR: apport (pid 2845) Sun Sep 6 09:45:36 2020: wrote report /var/crash/_usr_sbin_gdm3.0.crash
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
CasperMD5CheckResult: skip
CrashReports:
 640:0:125:500320:2020-09-06 09:50:47.521485567 +0200:2020-09-06 09:55:24.662612942 +0200:/var/crash/_usr_sbin_gdm3.0.crash
 600:120:125:37:2020-09-06 09:55:30.745127080 +0200:2020-09-06 09:55:30.745127080 +0200:/var/crash/_usr_sbin_gdm3.0.uploaded
 644:0:125:0:2020-09-06 09:55:24.662612942 +0200:2020-09-06 09:55:24.662612942 +0200:/var/crash/_usr_sbin_gdm3.0.upload
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 6 10:27:09 2020
ExecutablePath: /usr/bin/apport-bug
InstallationDate: Installed on 2020-09-03 (2 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
InterpreterPath: /usr/bin/dash
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=it_IT.UTF-8
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
SourcePackage: apport
UpgradeStatus: No upgrade log present (probably fresh install)