liststreamitems count and start seem to be reversed from the documentation and start doesn't seem to work

Question

I have 9 items in the stream

The third parameter changes the number of items returned and if it is negative an error message of "Invalid Count" is thrown

The second parameter returns the same result whether positive or negative -99 and 99 return the same last 4 items if the count is 4 but there are on only 9 items

 rows have been deleted that added no value and caused me to exceed my line limit

{"method":"liststreamitems","params":["TEST STREAM 3"],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 1",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 2",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 3",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 4",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 5",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 6",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 7",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",1,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",-1,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",8,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",8,-2],"id":1,"chain_name":"digicert"}

error code: -8
error message:
Invalid count
{"method":"liststreamitems","params":["TEST STREAM 3",-8,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",3,3],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 7",
    "blockindex" : 8,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",-3,3],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 7",
    "blockindex" : 8,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",3,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",-3,2],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",99,4],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 6",
    "blockindex" : 7,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 7",
    "blockindex" : 8,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]
{"method":"liststreamitems","params":["TEST STREAM 3",-99,4],"id":1,"chain_name":"digicert"}

[
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 6",
    "blockindex" : 7,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 7",
    "blockindex" : 8,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 8",
    "blockindex" : 9,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  },
  {
    "publishers" : [
      "1NYktD7U6Dj3YfvFD5RXycUa61CKtRVjsLURLC"
    ],
    "key" : "Entry 9",
    "blockindex" : 10,
    "vout" : 0,
    "valid" : true,
    "time" : 1488240150,
  }
]

Answer 1

There's a verbose parameter before count and start that you're not taking account of.