Ubiquity crashes on WIFI selection.

[Antony Bates]

Installer crashes when installing Kubuntu, standard install and OEM, on Thinkpad 440s.

Crashes on attempted selection of WiFi access point. Crashes to Live Iso

Description: Ubuntu Hirsute Hippo (development branch)
Release: 21.04
ubiquity:
  Installed: 21.04.9
  Candidate: 21.04.9
  Version table:
 *** 21.04.9 500
        500 http://archive.ubuntu.com/ubuntu hirsute/main amd64 Packages
        100 /var/lib/dpkg/status

Expected successful install

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: ubiquity 21.04.9
ProcVersionSignature: Ubuntu 5.10.0-14.15-generic 5.10.11
Uname: Linux 5.10.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu59
Architecture: amd64
CasperMD5CheckMismatches: ./pool/restricted/n/nvidia-graphics-drivers-390/libnvidia-gl-390_390.141-0ubuntu1_i386.deb
CasperMD5CheckResult: skip
CasperVersion: 1.456
CurrentDesktop: KDE
Date: Mon Feb 22 17:38:29 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Kubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210222)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)