KCL1.x Java don't consuming records

I am using KCL 1.14.8 for Java. My Kinesis only have one shard, and I put a record into Kinesis every 30 seconds. For each record, the RecordProcessor will process it, processing each record may take several seconds(<10 seconds). This is worker configuration.

configuration.withInitialPositionInStream(InitialPositionInStream.LATEST)
                .withRegionName("eu-west-1")
                .withMaxRecords(10)
                .withIdleTimeBetweenReadsInMillis(1000L)
                .withCallProcessRecordsEvenForEmptyRecordList(false)
                .withRetryGetRecordsInSeconds(1)
                .withFailoverTimeMillis(60_000);

When the application start, It don't consuming records at all. the logs show this:

Aug 21, 2022 @ 21:24:14.943	Skipping shard sync due to the reason - Hash range is complete.	
Aug 21, 2022 @ 21:24:14.785	Number of pending leases to clean before the scan : 0	
Aug 21, 2022 @ 21:24:00.144	Sleeping ...	
Aug 21, 2022 @ 21:24:00.144	Current stream shard assignments: shardId-000000000000	
Aug 21, 2022 @ 21:23:14.911	Elected leaders: xxxxx-187a-4ceb-9714-e39ab1c7bb71	
Aug 21, 2022 @ 21:23:14.785	Number of pending leases to clean before the scan : 0	
Aug 21, 2022 @ 21:22:59.128	Sleeping ...	
Aug 21, 2022 @ 21:22:59.128	Current stream shard assignments: shardId-000000000000	
Aug 21, 2022 @ 21:22:14.937	Skipping shard sync due to the reason - Hash range is complete.	
Aug 21, 2022 @ 21:22:14.785	Number of pending leases to clean before the scan : 0	
Aug 21, 2022 @ 21:21:58.114	Current stream shard assignments: shardId-000000000000	
Aug 21, 2022 @ 21:21:58.114	Sleeping ...	
Aug 21, 2022 @ 21:21:14.785	Number of pending leases to clean before the scan : 0

please help.