crash on TR-38-D decoupling

[Isidor10]

While trying to launch my newly-assembled in-place miner/refinery into LKO for future acceleration to the Jool system, I've encountered a bug - this ship https://drive.google.com/folderview?id=0BydC01hwsfF1RTVmdFlqLVJFQTQ&usp=sharing

loads just fine onto the launchpad, and the first stage takes it to ~50 km. But then, when I tried to begin the second stage:
Disaster!
Staging the decoupler or decoupling it manually (i.e. by right-clicking) causes the whole game to crash. I've included the relevant logfiles in the folder above.

[sal_vager]

Hi @Isidor10, this is a known issue on some Macs and may be related to the graphics card and driver.

You can prevent this by making a small edit to the part.cfg in GameData/Squad/Parts/Structural/Size3Decoupler using any a text editor.

By changing the line:

    PhysicsSignificance = 1

To:

    PhysicsSignificance = 0

And saving the file, the next time you start KSP this issue should no longer occur.

It is not known why this happens, and it does not affect all systems.

Hope this helps!

[Isidor10]

Thanks @sal_vager, that's fixed it.
For reference purposes, I'm running OSX El Capitan (version 10.11.3) on a mid-2012 Macbook Pro with 8GB RAM and standard Intel HD Graphics 4000. All crashes happened when running in full-screen mode, I neglected to test if the same happened when running windowed.