Syslog filled with many "Window manager warning: Property WM_NAME on window 0xXXXXXXX contained invalid UTF-8"

[Moshe Caspi]

As the summary says. Logging in option: "Ubuntu on X11". From syslog:

May 10 13:56:56 moshe gnome-shell[32454]: Window manager warning: Property WM_NAME on window 0x2c00046 contained invalid UTF-8
May 10 13:59:18 moshe gnome-shell[32454]: Window manager warning: Property WM_NAME on window 0x2c000f9 contained invalid UTF-8
May 10 13:59:25 moshe gnome-shell[32454]: Window manager warning: Property WM_NAME on window 0x2c001ba contained invalid UTF-8
May 10 14:00:07 moshe gnome-shell[32454]: Window manager warning: Property WM_NAME on window 0x2c000f9 contained invalid UTF-8

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gnome-shell 42.9-0ubuntu2.1
ProcVersionSignature: Ubuntu 5.15.0-106.116-generic 5.15.149
Uname: Linux 5.15.0-106-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri May 10 14:03:36 2024
DisplayManager: gdm3
InstallationDate: Installed on 2019-04-03 (1864 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
ProcEnviron:
 LANGUAGE=en_IL:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IL
 SHELL=/bin/bash
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions: mutter-common 42.9-0ubuntu7.1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to jammy on 2022-08-12 (637 days ago)