ebook-viewer crashed with SIGSEGV in QObject::disconnect()

[Set Hallstrom]

ebook-viewer crashed when i shut it down.

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: calibre 2.60.0+dfsg-1build1~1
ProcVersionSignature: Ubuntu 4.4.0-9136.55-lowlatency 4.4.16
Uname: Linux 4.4.0-9136-lowlatency x86_64
ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Sep 7 14:47:41 2016
ExecutablePath: /usr/bin/ebook-viewer
InstallationDate: Installed on 2016-08-25 (13 days ago)
InstallationMedia: Ubuntu-Studio 16.10 "Yakkety Yak" - Alpha amd64 (20160824.2)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.7 /usr/bin/ebook-viewer
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<username>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: calibre
StacktraceTop:
 QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
 ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 start_thread (arg=0x7ff32cdda700) at pthread_create.c:333
Title: ebook-viewer crashed with SIGSEGV in QObject::disconnect()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /tmp/apport_sandbox_EEJN8S/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 QDBusConnectionPrivate::closeConnection() () from /tmp/apport_sandbox_EEJN8S/usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
 QDBusConnectionManager::run() () from /tmp/apport_sandbox_EEJN8S/usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
 QThreadPrivate::start(void*) () from /tmp/apport_sandbox_EEJN8S/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
 start_thread (arg=0x7ff32cdda700) at pthread_create.c:333

[Eylul (eylul)]

also ran into this problem, same with calibre. there is a crash after the program is closed down.

[Launchpad Janitor (janitor)]

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

[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/1621205