When any type of explosion causes a nuke block to break, the game has a chance of crashing. This appears to be a random chance, but if you try it a few times you should get the crash.

Steps to reproduce:

1. Place a nuke in the world.
2. Place a block of TNT adjacent to the nuke.
3. Place a lever adjacent to the TNT, and flip it.
4. The TNT explodes, either causing a crash, or igniting the nuke.

Crash Log

Have you changed the config value for the fuze time?

I don't think so, here's the relevant section of my current config as a reference:

nuke {
    # Should the nuke explode, set to false to prevent block damage [Default=true]
    B:enabled=true

    # Nuke fuse time (ticks) [Default=400]
    I:fuse=400

    # Nuke explision radius [Default=40]
    I:radius=40
}

ah, ok. I think I see how its happened

ok, just tested it, @drcrazy fixed it a few days ago with c56da8c it will be included in the next release