I just found a very minor bug involving the mines and hull display. If you have one health point left (ie, 25% hull with no upgrades), and get caught in the inner blast radius of a mine you'll still lose as normal but your hull value won't decrease and the chain won't break. Since this isn't a game breaking bug I can't upload a fixed version of the game, but in case you lost to a mine but still had health left over, this is why.