Comment # 6 on bug 1221150 from Nik Kai

(In reply to Antonio Larrosa from comment #4)
> There seems to be a way to "fix it" manually. Can you try installing the
> gstreamer-plugins-bad package again and then run the next command?
> 
> rm ~/.cache/gstreamer-1.0/registry.x86_64.bin ; gst-inspect-1.0 foo
> 
> After doing that, pulseaudio seems to start correctly every time. It would
> be nice if you could verify if that works for you too.

Did as instructed, but sadly, your solution does not have any effect. The error
still pops up, segfault. 
I will leave the gstreamer-plugins-bad package uninstalled for now.