When the installer is running for Wily (15.10) , the available drop-down to see the details of the packaged being manipulated will not drop down and open. As you can see in the attachment, the arrow to click would rotate to give you the option to close the pane but the pane was not opened to begin with.
Results of 'apt-cache policy ubiquity':
\ubiquity:
Installed: 2.21.33
Candidate: 2.21.33
Version table:
*** 2.21.33 0
500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: ubiquity 2.21.33
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.365
CurrentDesktop: Unity
Date: Sun Oct 18 11:40:32 2015
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20151017)
ProcEnviron:
TERM=xterm-256color
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)
Doh, helps to actually attach the file correctly.