Check for start > end too

op-batcher/batcher/driver.go

@@ -191,7 +191,7 @@ func (l *BatchSubmitter) loadBlocksIntoState(ctx context.Context) {
 	if err != nil {
 		l.log.Warn("Error calculating L2 block range", "err", err)
 		return
-	} else if start.Number == end.Number {
+	} else if start.Number >= end.Number {
 		return
 	}
 
@@ -212,15 +212,13 @@ func (l *BatchSubmitter) loadBlocksIntoState(ctx context.Context) {
 		latestBlock = block
 	}
 
-	if latestBlock != nil {
-		l2ref, err := derive.L2BlockToBlockRef(latestBlock, &l.Rollup.Genesis)
-		if err != nil {
-			l.log.Warn("Invalid L2 block loaded into state", "err", err)
-			return
-		}
-
-		l.metr.RecordL2BlocksLoaded(l2ref)
+	l2ref, err := derive.L2BlockToBlockRef(latestBlock, &l.Rollup.Genesis)
+	if err != nil {
+		l.log.Warn("Invalid L2 block loaded into state", "err", err)
+		return
 	}
+
+	l.metr.RecordL2BlocksLoaded(l2ref)
 }
 
 // loadBlockIntoState fetches & stores a single block into `state`. It returns the block it loaded.