Jira Automation Plugin: Value can not be empty

[DACHCOM CustomerCare]

I have the following Config:

AssigneDomains

Actor xxxx (a admin user)
Trigger: TypeJQL Filter Trigger
JQL expression: issuetype = Domain AND duedate <= now() ORDER BY duedate
Limit results
CRON schedule* * * * * ?
Actions
Edit Issue Action
Edit fields:  assignee = aexistenuser
Allow variable expansion: No
Send notification?: Yes

Running the job it gives me "Value cannot be empty" in the audit log
There is no required field, which would be empty... 

Any idea, what value is empty here ?

Tks
Stefan

[Gabor Nagy _Midori_]

Hi,

I checked the Automation plugin's source code and the logged string does not come from there.

I see from your config that you are using the Edit Issue Action. My suspicion is that the action is trying to edit an issue and leaves a required field empty. I suggest trying to edit another field and see if the problem still occurs. If not, then "assignee = aexistenuser" setting must cause the error.