Population User picker field with JIRA Automation

[Karen Kelly]

I have a Multi Select field that I use on a JIRA service Management form to select employees to review work. I needed to set default people so the Multi User picker field did not want to display defaults on the form, thus I opted to use a Select List with Checkboxes.

I am able to get all the values of the checkboxes e.g.

User 1

User 2

User 3

But now that I want to assign these fields back to a user picker field it just says 'Inactive User on the Automation log.

See attached the Description populates perfectly with the employee names but just the User picker fields don't want to even though the display names are the same

I even tried using Smart Variables e.g. One = {{issue.customfield_11992.value.get(0)}} and then set Assignee 1 (UP) = {{One}} with no success even though the display names are the same

It seems to work if you replace the user names with email addresses but I was hoping to use the names?

[Derek Fields _RightStar_]

Try 

{{issue.customfield_11992.value.get(0).accountId}}

[Karen Kelly]

I even tried variables e.g. One = {{issue.customfield_11992.value.get(0)}} and then Assignee 1 (UP) = {{One}} but it renders the same issue