Pressing "A" button during keyboard layout screen crashed kubuntu installer

[Dydzio]

Booted my PC from kubuntu 22.04 installer media and selected install kubuntu. I set language to polish, and then during keyboard layout screen I pressed "A" button on keyboard and installer immediately crashed.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.15.0-52.58-generic 5.15.60
Uname: Linux 5.15.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Fri Oct 21 20:36:40 2022
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2022-10-19 (2 days ago)
InstallationMedia: Kubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Aaron Rainbolt (arraybolt3)]

Confirmed on Kubuntu 22.04.1 in a GNOME Boxes VM. Booted ISO, selected "Polski" as language, clicked the "Install Kubuntu" button (which was now named something different), then pressed "A" on my keyboard.

When "A" is pressed, the two drop-down menus in the installer change to read "A user-defined custom Layout", and the following error message appears on the screen:

We're sorry; the installer crashed. Please file a new bug report using the command 'ubuntu-bug ubiquity' in a terminal. This will gather information about your system and your installation process. The details will be sent to our bug tracker and a developer will attend to the problem as soon as possible.

Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 175, in paintEvent
    x, rw = drawRow(keys[i], x, y, i==1 and not ext_return)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 137, in drawRow
    rect, Qt.AlignLeft | Qt.AlignBottom, self.regular_text(k))
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/Keyboard.py", line 222, in regular_text
    return self.codes[index - 1][0]
IndexError: list index out of range

[Dan Bungert (dbungert)]

Moving away from Ubiquity, as the base Ubiquity ISO doesn't produce this problem but kubuntu does.

[Rik Mills (rikmills)]

This is bug in the KDE front end of ubiquity, so is a bug in that source.