Hey,

When I updated the plugin to include the new iteams MLRS rockets only stack to 1 instead of thier default which is 6. I've changed the the stack size to match the default and unfortunately even after the plugins reloaded the stack size is still 1.

      "ammo.rocket.mlrs": {
        "ShortName": "ammo.rocket.mlrs",
        "DisplayName": "MLRS Rocket",
        "Modified": 6
      }

Well, you have caused a duplication issue by assuming it was missing.
By adding a second instance of the same item, StackModifier does not set the setting for it.

( Since StackModifier has an auto-update function that already adds new rust items to it. )

Thanks but seems the issue resolved itself after a server restart.