LightDM - May 2016 - when running orca the screen reader from the lightdm loggin screen it freezes the hole system

hi there,
could this be fixed?
as soon as orca is launched in the lightdm window the system completely crashes.
i'm running sonar linux, a derivative of manjaro.
this problem also happens in ubuntu, I have links to some of the bugg reports.

https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1483864

thanks for your help :)
Majid Hussain