DMN Error when comparing the dates with timezone offset

Hi Team,
Good day to you.

I have the attached DMN table that provides the output based on the comparison of dates provided in the input. However, the first request provided below is successfully returning the result. When I pass on the same request by adding the offset “Z” for variable “versionEffectiveFromDate” , I am getting the Rest Exception error. Kindly assist to identify the reason for getting this error. (Note : I am passing the current date value from script in API postman request : var current_timestamp = new Date();
postman.setEnvironmentVariable(“current_timestamp”,current_timestamp.toISOString());PricingVersion.dmn (6.0 KB)
)

Request 1 :
{

"variables": {

    "versionEffectiveFromDate": {

        "value": "2019-12-06T00:00:00"

    },

     "currentDate": {

            "value": "{{current_timestamp}}"

    },

     "quoteCreatedDate": {

            "value": "2020-10-22T11:00:00Z"

    },

     "quoteSubmittedDate": {

            "value": "2020-10-23T11:00:00Z"

    },

     "transactionType": {

            "value": "AM"

    }

}

}

Response :

[

{

    "version": {

        "type": "Integer",

        "value": 3,

        "valueInfo": {}

    }

}

]

Request 2 :

{

"variables": {

    "versionEffectiveFromDate": {

        "value": "2019-12-06T00:00:00Z"

    },

     "currentDate": {

            "value": "{{current_timestamp}}"

    },

     "quoteCreatedDate": {

            "value": "2020-10-22T11:00:00Z"

    },

     "quoteSubmittedDate": {

            "value": "2020-10-23T11:00:00Z"

    },

     "transactionType": {

            "value": "AM"

    }

}

}

Response :

{

"type": "RestException",

"message": "Cannot evaluate decision pricingVersion:20:cf78d499-3aca-11ec-99b7-00ff16aada0f: Exception while evaluating decision with key 'null'"

}