Got the following error when it was running:
Dec 28 12:30:18 madhatter packagekitd: packagekitd: /usr/include/boost/smart_ptr/intrusive_ptr.hpp:162: T* boost::intrusive_ptr<T>::operator->() const [with T = zypp::ResObject]: Assertion `px != 0' failed.
We moved the upstream bugtracker to GitHub a long time ago. If this issue still affects you please re-create the issue here: https://github.com/hughsie/PackageKit/issues
Sorry for the impersonal message, and fingers crossed your issue no longer happens. Thanks.