Can an incident be resolved while escalation is still open?

[User492015]

I ran into a situation where an incident is resolved when an associated task is closed while an escalation on the incident is still open.

The incident was opened and went through L1 to L3 escalation. The incident had one task. The L1 and L2 escalations were all closed while a task and L3 escalation were still open. When the task was closed, the incident automatically moved to the resolved state while the L3 escalation was still open.

Is this normal? What could possibly be the error.

Thanks for your help.

[subhadeep1618]

Escalation is a custom table, so this requirement involves a custom solution.