Onboarding Task Sequence - Cannot Get New Request to Sequence

Summary:

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I have created a new Pre-boarding task that needs to be allocated to action once the pending worker has completed the mandatory "Address" task which is set as task 2.

As you can see in the photo attached all fields and sequence number are set to "12" and the rule for "Preceding Task" is also set.

But for unknown reasons it keeps making this new task (Task 12) the 1st task in the preboarding task section

So its ignoring the "Preceding Task" rule.

If i remove that "Preceding Task" rule and leave it as task 12, it again ignores the sequence number rule and makes it the first task.