After some point dealing damage to a ship, specifically a ship with the new power system (though not confirmed to only apply to such vessels) crashes the game. The weapon used to do this seems to be a missile, though I cannot confirm that this is the only weapon with which this happens.
Also I've noticed for the last several dev updates that system HP does not take damage at all when firing upon a ship.
There are a lot of unknowns to me for this one. The logs will be posted below (for once by me) as well as the specific craft with which I was doing the shooting with and destroying of.