Sequencer "capture movie" crash

[curvingorbit]

When I invoke “Capture Movie” in the sequencer I get the “Capturing video” notice together with the “Movie Render - Preview” screen – and then the program crashes and/or freezes the computer.
I’ve been trawling the web and trying everything for days now. Any ideas very gratefully received. Thanks !
OS X 10.11.4
27-inch, Late 2012 iMac (2560 x 1440)
3,4 GHz Intel Core i7
24 GB 1600 MHz DDR3
NVIDIA GeForce GTX 680MX 2048 MB
1,12 TB Fusion Drive with 592 GB free

[EtienneAndlau]

Here is why I figured it out.
You have to disable your follow camera from auto activate.
This silly sequencer thing doesn’t know which camera to render out EVEN if you have its interface open AND the camera cut actor selected when you try to capture … sigh.