Installation on UEFI laptop

Just started the installation from a daily kubuntu live 2016/03/04 on a UEFI laptop and I got the error message
Traceback (most recent call last):
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_ui.py", line 502, in <lambda>
    0, lambda: self.dbfilter.start(auto_process=True))
  File "/usr/lib/ubiquity/ubiquity/filteredcommand.py", line 103, in start
    prep = self.prepare()
  File "/usr/lib/ubiquity/plugins/ubi-prepare.py", line 336, in prepare
    self.ui.set_using_secureboot(True)
AttributeError: 'PageKde' object has no attribute 'set_using_secureboot'

Yesterday I succssfully installed the same iso - except for an error about keyboard, that I i
gnored and proceeded- on a kvm vm - so no uefi and secure boot there.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.47
ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
Uname: Linux 4.4.0-9-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CasperVersion: 1.367
CurrentDesktop: KDE
Date: Sat Mar 5 11:55:17 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity quiet splash ---
LiveMediaBuild: Kubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160304)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)