Autoform + collections - cannot save record

1

I am trying to save a record into a collection using autoform and although I have several other forms that work fine this new one is giving me a access denied error when I use the same permissions as my other already working collections.

Although if I set the allow to just return true, the record inserts momentarily (watching in mongol) then is deleted. Why is this?

My allow file:

Posts.allow
	insert: (userId, doc) ->
		userId == doc.owner # all works fine for the other forms..
	update: (userId, doc, fields, modifier) ->
		userId == doc.owner
	remove: (userId, doc) ->
		userId == doc.owner

purchaseOrders.allow
	insert: (userId, doc) ->
		userId == doc.owner #setting to true momentarily inserts and then is deleted
	update: (userId, doc, fields, modifier) ->
		userId == doc.owner
	remove: (userId, doc) ->
		userId == doc.owner

Autoform template

{{#autoForm collection="purchaseOrders" type="insert" id="confirmPurchaseOrder"}}
                          {{> afQuickField name="message" rows=4 type="textarea" style="width: 100%;"}}
                           <button type="submit" class="btn btn-success" id="confirmOrderFinal">Confirm Order</button>
 {{/autoForm}}

Collection

@purchaseOrders = new Meteor.Collection('purchaseOrders');

Schemas.purchaseOrders = new SimpleSchema
  message:
    type: String
    label: "Extra message or instructions"
    optional: true
    autoform:
      afFieldInput:
        type: "textarea"
        rows: 4

	status:
		type: String
    optional: true

	orders:
		type: Array
    optional: true

  "orders.$":
    type: Object

	createdAt:
		type: Date
		autoValue: ->
			if this.isInsert
				new Date()

	updatedAt:
		type:Date
		optional:true
		autoValue: ->
			if this.isUpdate
				new Date()

	owner:
		type: String
		regEx: SimpleSchema.RegEx.Id
		autoValue: ->
			if this.isInsert
				Meteor.userId()
		autoform:
			options: ->
				_.map Meteor.users.find().fetch(), (user)->
					label: user.emails[0].address
					value: user._id

Thanks for any help on why this wont insert as this is the last thing to finish my app! hope someone can help out there