Four ways a round ends
Settled A price inside the settlement window decided it. Holders above the strike are paid; the premium stays.
Lapsed The auction ended with nothing sold. No premium, no payout, the pool is untouched.
Voided The price inside the window was unusable. Every premium is refunded in full; the pool is untouched.
Unresolved Nobody settled inside the window. No payout, the premium stays, and the oracle is never called.
All four are normal. Two of them pay nobody, and that is a data point, not a failure.