I programed a rule to creat a subtasks when a creat a task and automatically edit the start date of subtasks but the field not update, i try many forms but the rule fail and present the error:
"Unknown fields defined during creation. They may be unavailable for the project/type. Check the custom field configuration. Ignored fields –
Start date (customfield_10015)"
The most strange is when i use the same rules in deadline its worked