Set Item.vi, insert new parameter to array's element

Not sure whether it is bug or expected behavior, so let me please describe the issue.

I have the following JSON:

{
  "Variables": {
    "Container": {
      "Path": "C:\\trdock_debug.log",
      "String": "Configuration String",
      "Boolean": true,
      "Integer": -5,
      "Double": 10.5
    },
    "Parameters": [
      {
        "SW": {
          "TEST": {
            "ENABLE": true
          }
        }
      },
      {
        "SW": {
          "TEST": {
            "ENABLE": false
          }
        }
      }
    ]
  }
}

‌

And, I’d like to add new parameter to Variables.Parameters.SW.TEST container (let’s say, that parameter name is “New Parameter”.

So input data to “Set Item.vi” are:

$Path or Item Name = $.Variables.Parameters[0].SW.TEST.New Parameter

JSON to Insert = false

But, error is occurred:

Error 402840 occurred at JSONtext.lvlib:Set Item.vi

Possible reason(s):

Unable to Insert at .Variables.Parameters[0].SW.TEST.New Parameter

When I try to add new parameter to another JSON object outside array, then it works, for example:

$Path or Item Name = $.Variables.Container.New Parameter

JSON to Insert = false

Also, when I set directly “SW” object it works:

$Path or Item Name = $.Variables.Parameters[0].SW

JSON to Insert = false

Or, when I modify existing value “ENABLE” it also works:

$Path or Item Name = $.Variables.Parameters[0].SW.TEST.ENABLE

JSON to Insert = false

Does error occur because of this JSON object is nested within the array please? But on the other hand, if there are different elements in JSON array - string is anyway valid, and it is possible to read/modify parameters from it…

Thank you very much in advance!

Sincerely, Ivan.

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