Pat Marion

Sounds like it could be an issue with vtk together with the ubuntu16 system version of qt5.

I would start by collecting a backtrace and use print statements to locate the crash. I would also reconfigure the Director superbuild options to use vtk7 and qt4 and verify...

director/master includes a top level `catkin_ws` folder. first build director as usual, then build the catkin_ws. the director superbuild does this automatically when you enable `USE_ROS` see: https://github.com/RobotLocomotion/director/blob/master/distro/superbuild/cmake/externals.cmake#L13 and: https://github.com/RobotLocomotion/director/blob/master/distro/superbuild/cmake/externals.cmake#L642...

Oops, in the above post, please ignore the `pointcloud_subscriber.py` file I linked to. That file is out of date and should be deleted. This is the more comprehensive example file:...

you're saying that when reading your log `log.read_next_event()` returns `None` before the end of the log, and there are more messages that can be read after the `None`?