doesnt have to be in the same period

relayer/relays/beacon/header/header.go

@@ -523,15 +523,10 @@ func (h *Header) findLatestCheckPoint(slot uint64) (state.FinalizedHeader, error
 		return beaconState, fmt.Errorf("GetLastFinalizedStateIndex error: %w", err)
 	}
 	startIndex := uint64(lastIndex)
-	endIndex := startIndex + 1
+	endIndex := uint64(0)
 
 	syncCommitteePeriod := h.protocol.Settings.SlotsInEpoch * h.protocol.Settings.EpochsPerSyncCommitteePeriod
-	slotPeriodIndex := slot / syncCommitteePeriod
-	totalStates := syncCommitteePeriod * 20 // Total size of the circular buffer,
-	// https://github.com/paritytech/polkadot-sdk/blob/master/bridges/snowbridge/pallets/ethereum-client/src/lib.rs#L75
-
-	for index := startIndex; index != endIndex; index = (index - 1 + totalStates) % totalStates {
-		log.WithFields(log.Fields{"index": index}).Info("searching for checkpoint on-chain")
+	for index := startIndex; index >= endIndex; index-- {
 		beaconRoot, err := h.writer.GetFinalizedBeaconRootByIndex(uint32(index))
 		if err != nil {
 			return beaconState, fmt.Errorf("GetFinalizedBeaconRootByIndex %d, error: %w", index, err)
@@ -540,15 +535,11 @@ func (h *Header) findLatestCheckPoint(slot uint64) (state.FinalizedHeader, error
 		if err != nil {
 			return beaconState, fmt.Errorf("GetFinalizedHeaderStateByBlockRoot %s, error: %w", beaconRoot.Hex(), err)
 		}
-		statePeriodIndex := beaconState.BeaconSlot / syncCommitteePeriod
-
 		if beaconState.BeaconSlot < slot {
-			log.WithFields(log.Fields{"index": index}).Info("break condition")
-			//break
+			break
 		}
 		// Found the beaconState
-		if beaconState.BeaconSlot > slot && beaconState.BeaconSlot < slot+syncCommitteePeriod && slotPeriodIndex == statePeriodIndex {
-			log.WithFields(log.Fields{"index": index}).Info("found it!")
+		if beaconState.BeaconSlot > slot && beaconState.BeaconSlot < slot+syncCommitteePeriod {
 			break
 		}
 	}