KSystemLog only launches if run from a terminal - attempting to run from the application menu or from KRunner silently fails

[Aaron Rainbolt]

Hardware is an HP Z220 SFF Workstation, 256 GB SSD + 1 TB SSD, 32 GB RAM, UEFI, no secure boot. Testing was done within a Gnome Boxes VM, SeaBIOS, 4 GB RAM, Kubuntu Kinetic live session.

Steps to reproduce bug:

1: Open the Application Menu.
2: Type "KSystemLog".
3: Click "KSystemLog".
4: Hit Alt+F2 to bring up KRunner.
5: Type "KSystemLog".
6: Press Enter.
7: Open the Application Menu, and click "Konsole".
8: Type "ksystemlog", and press Enter.

Expected result: KSystemLog should launch every time you attempt to run it.
Actual result: KSystemLog only launches when executed from the terminal.

Extra details:

If I run KSystemLog from the terminal, then attempt to open it again from the Application Menu while KSystemLog is open, the following lines immediately appear in the logs:

    5/18/22 10:31 PM systemd Started KSystemLog - System Log Viewer.
    5/18/22 10:31 PM sudo kubuntu : TTY=pts/3 ; PWD=/home/kubuntu ; USER=root ; COMMAND=/usr /lib/x86_64-linux-gnu/libexec/kf5/kdesu_stub -
    5/18/22 10:31 PM sudo pam_unix(sudo:session): session opened for user root(uid=0) by (uid=999)
    5/18/22 10:31 PM sudo kubuntu : TTY=pts/5 ; PWD=/home/kubuntu ; USER=root ; COMMAND=/usr/lib/x86_64-linux-gnu/libexec/kf5/kdesu_stub -
    5/18/22 10:31 PM sudo pam_unix(sudo:session): session opened for user root(uid=0) by kubuntu(uid=999)
    5/18/22 10:31 PM sudo pam_unix(sudo:session): session closed for user root

I'm guessing this is probably related to the kdesu bug here: https://bugs.kde.org/show_bug.cgi?id=452532

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: ksystemlog 4:22.04.1-0ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.470
CurrentDesktop: KDE
Date: Wed May 18 22:23:40 2022
LiveMediaBuild: Kubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220518)
SourcePackage: ksystemlog
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1974097