Workflows to Create Issue

I am having trouble creating a new issue in a workflow, or rather setting its properties. My code is looping through an array of repeating tasks and creating an issue for each. It creates the issues with no problem but for some reason I am not able to set the properties. The workflow message seems to indicate the field is set correctly but when I open the issues created the field is still in its default state. I have tried setting an enum and also a date field and get the same problem for each so I must be using the 'requirements' incorrectly but don't see what I am doing wrong. 

var entities = require('@jetbrains/youtrack-scripting-api/entities');
var workflow = require('v1/workflow');

var MONTHS = [
"January", "February", "March", "April",
"May", "June", "July", "August",
"September", "October", "November", "December"
];

var tasks=[
{
"TaskName": "Load LIM data",
"StartDate": 1,
"EndDate": 2
},
{
"TaskName": "Month End SRFA Update ",
"StartDate": 4,
"EndDate": 6
}
];
exports.rule = entities.Issue.action({
title: 'Test_fund_date_module',
command: 'test_fund_date_module',
guard: function(ctx) {
return true;
},
action: function(ctx) {

//get dates
var todaysDate = new Date();
var currentMonth = todaysDate.getMonth();
var currentYear = todaysDate.getFullYear();

//loop though each task and create issue
tasks.forEach(createIssue);

function createIssue(item){
var newIssueName= currentYear + '-' + MONTHS[currentMonth] + '-' + item.TaskName;
var startDate=new Date(currentYear,currentMonth,item.StartDate);

var newIssue = new entities.Issue(ctx.currentUser, ctx.issue.project,newIssueName,);
newIssue.fields.FundDataState = ctx.FundDataState.Submitted;
workflow.message(newIssue.fields.FundDataState.name);

}
},
requirements: {

FundDataState: {
name: 'Fund Data State',
type: entities.EnumField.fieldType,
Submitted: {
name: 'Submitted'
}
}

}