Hi,guys!
I need some help with the case.
I tried to implement post - function by JMWE (v 6.4.0) add-on in Jira Software Server (v.8.5.12) and bumped into some confused situation.
Use case.
Post-function should create multiple issue for diffrent Assignee based on values from Approvers - customfield (multi user picker field)
Result
We can't create this issue for you right now, it could be due to unsupported content you've entered into one or more of the issue fields.
If this situation persists, contact your administrator as they'll be able to access more specific information in the log file.
Transition (without validator)

Post-function looks like so

Logs

Somebody have any suggestions where is my mistake ?