Ubuntu-Software app is not launching after upgrade to 20

[Pavel Deg]

Ubuntu-Software app is not launching after 19.10 to 20 upgrade.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-software 3.36.0-0ubuntu3
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat May 9 13:19:53 2020
InstallationDate: Installed on 2020-04-08 (30 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
InstalledPlugins:
 gnome-software-plugin-flatpak N/A
 gnome-software-plugin-snap 3.36.0-0ubuntu3
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-software
UpgradeStatus: Upgraded to focal on 2020-05-09 (0 days ago)

[Sebastien Bacher (seb128)]

Thank you for your bug report. Could you add the 'journalctl -b 0' log after getting the issue?

Do you get any error on the command line if you start it there?

[Pavel Deg (paveldeg)]

Re-enabling apparmor fixed the problem.I just don't get why I have to have apparmor enabled just to get basic apps working, doesn't make sense.