falkon does not launch under noble development

[Claus7]

trying to launch falkon under ubuntu noble development it fails
unfortunately error report cannot be sent since there is a bad gateway message

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: falkon 23.08.4-0ubuntu1
ProcVersionSignature: Ubuntu 6.5.0-9.9-generic 6.5.3
Uname: Linux 6.5.0-9-generic x86_64
ApportVersion: 2.27.0-0ubuntu6
Architecture: amd64
CasperMD5CheckMismatches: ./boot/grub/grub.cfg
CasperMD5CheckResult: fail
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 4 02:23:44 2024
InstallationDate: Installed on 2023-11-15 (49 days ago)
InstallationMedia: Ubuntu 24.04 "Noble Numbat" - Daily amd64 (20231115.1)
ProcEnviron:
 LANG=el_GR.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: falkon
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Chris Guiver (guiverc)]

I noted this in #ubuntu-bugs-announce

I installed falkon on my box; and tried to run it..

guiverc@d7050-next:~$ falkon
[2255680:2255680:0104/150522.970310:FATAL:credentials.cc(125)] Check failed: . : Permission denied (13)
Trace/breakpoint trap (core dumped)

I'm using LXQt (Lubuntu noble), and if I attempt to start it via menus, no message appears but it fails to run. Inside /var/crash I note

-rw-r--r-- 1 guiverc whoopsie 0 Jan 4 15:05 _usr_bin_falkon.1000.upload
-rw-r----- 1 guiverc whoopsie 5.3M Jan 4 15:05 _usr_bin_falkon.1000.crash
-rw------- 1 whoopsie whoopsie 37 Jan 4 15:06 _usr_bin_falkon.1000.uploaded

(if helpful I can create a bug report & mark duplicate of this to get my crash detail; but it appears to have been uploaded given .uploaded in /var/crash)

[Aaron Rainbolt (arraybolt3)]

This is almost without question the AppArmor issue with user namespaces again.