"For Each" OOB Function Failing in Subflow for MRVS

[ajhsdgj]

Hi,

I am working on a subflow where I need to loop through each value in a Multi Row Variable Set (MRVS) using the out-of-the-box For Each function. This works fine in the main flow for the same catalog item and MRVS, but in the subflow I get this error:

Error: Cannot convert null to an object.,Detail: Cannot convert null to an object., errorCode:1

I have tried different troubleshooting steps and checked the ServiceNow Community but could not find a solution. The documentation says For Each should work with MRVS in flows.

Can anyone help me with this? I tried parsing the value and then using it, I got the same error. This is how the MRVS looks like the following.

Thanks in Advance!

{
    "Create Policy": [
        {
            "action": "allow",
            "application_inspection": "icmp",
            "destination_group": null,
            "destination_ip": "2.2.2.2",
            "destination_security_zone": "any",
            "group_rules_by_tag": "Mainframe",
            "rule_name": "Ak_test1",
            "service_service_group": null,
            "source_group": null,
            "source_ip": "1.1.1.1",
            "source_security_zone": "any",
            "update_policy": false
        },
        {
            "action": "deny",
            "application_inspection": null,
            "destination_group": "ansible_test1",
            "destination_ip": null,
            "destination_security_zone": "any",
            "group_rules_by_tag": "Mainframe",
            "rule_name": "Ak_test2",
            "service_service_group": "tecp-123",
            "source_group": "ansible_test1",
            "source_ip": null,
            "source_security_zone": "any",
            "update_policy": false
        },
        {
            "action": "allow",
            "application_inspection": "icmp",
            "destination_group": "ansible_test1",
            "destination_ip": "5.5.5.5, 6.6.6.6",
            "destination_security_zone": "any",
            "group_rules_by_tag": null,
            "rule_name": "Ak_test3",
            "service_service_group": "tcp-123",
            "source_group": "ansible_test1",
            "source_ip": "3.3.3.3, 4.4.4.4",
            "source_security_zone": "any",
            "update_policy": false
        }
    ]
}

[ajhsdgj]

Yes, the one I shared in description is from Subflow execution

[OlaN]

Hi,

Can you please share the configuration on the Subflow? 
And also the parts on the Flow calling the Subflow would be good to know to help troubleshoot.

[ajhsdgj]

The subflow is getting called from ITOM framework through mapping. 
I am getting all the inputs as is subflow. There's no issue with that part it's when I am using multiple steps in the for each loop the iterations are failing after the first one.