Ubiquity crash during installation (yakkety)

[Nairwolf]

I was trying to install the yakkety yak daily version of Xubuntu (build of 18/08), and a crash of ubiquity interrupted the process.

The crash happened during the slideshow step.

I can't give more information except the apport report I've captured with my phone cameras. The report can be shown here : http://imgur.com/a/v2Wqn

Critical bug that left my precedent hard drive content empty (because of reformat during installation) without new OS.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: ubiquity 16.10.7
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CasperVersion: 1.376
Date: Thu Aug 18 00:35:07 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/xubuntu.seed boot=casper only-ubiquity quiet splash ---
LiveMediaBuild: Xubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160817)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1614302