Why some death notes show distance and some do not...

Does anyone know why?  Is this a bug?

If you want them all to show distance, then you have to configure them to do so in the config.

As an example of showing it in the config, have something like the configuration block below in your DeathNotes.json file to show the distance. The below example is a player shooting a scientist, but you can do this with any ranged attack:

      {
        "KillerType": "Player",
        "VictimType": "Scientist",
        "DamageType": "Bullet",
        "Messages": [
          "{killer} did some research of their own against a {victim} with their {weapon} over a distance of {distance}."
        ]
      },​

Example output: "Terceran did some research of their own against a Scientist with their M39 over a distance of 49.7 meters."