flink1.11 可以使用processtime开窗，但是无法使用eventtime开窗

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您好，请教一个问题，谢谢：
很简单的json，
{"num":100,"ts":1595949526874,"vin":"DDDD"}
{"num":200,"ts":1595949528874,"vin":"AAAA"}
{"num":200,"ts":1595949530880,"vin":"CCCC"}
{"num":300,"ts":1595949532883,"vin":"CCCC"}
{"num":100,"ts":1595949534888,"vin":"AAAA"}
{"num":300,"ts":1595949536892,"vin":"DDDD"}
我就想使用eventtime开窗，但是亲测使用procetime可以，但是eventtime死活都不行，郁闷，望指教。
public class FlinkKafka {
public static void main(String[] args) throws Exception{
final StreamExecutionEnvironment env = 
StreamExecutionEnvironment.getExecutionEnvironment();
final EnvironmentSettings settings = 
EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
final StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env, 
settings);

        String kafkaSourceTable = "CREATE TABLE kafkaSourceTable (\n" +
" ts BIGINT,\n" +
" num INT ,\n" +
" vin STRING ,\n" +
" pts AS PROCTIME() ,  \n" +  //处理时间
" rowtime AS TO_TIMESTAMP(FROM_UNIXTIME(ts / 1000, 'yyyy-MM-dd HH:mm:ss')), \n 
" +
"  WATERMARK FOR rowtime AS rowtime - INTERVAL '1' SECOND \n" +
") WITH (\n" +
" 'connector' = 'kafka',\n" +
" 'topic' = 'kkb',\n" +
" 'properties.bootstrap.servers' = 'node01:9092,node02:9092,node03:9092',\n" +
" 'properties.group.id' = 'mm',\n" +
" 'format' = 'json',\n" +
" 'scan.startup.mode' = 'latest-offset' \n" +
")";
        tableEnv.executeSql(kafkaSourceTable);

        String queryWindowAllDataSql = "SELECT * from kafkaSourceTable  group 
by ts,num,vin,pts,rowtime, TUMBLE(pts, INTERVAL '5' SECOND)";
final Table windowAllTable = tableEnv.sqlQuery(queryWindowAllDataSql);

        windowAllTable.printSchema();
        tableEnv.toAppendStream(windowAllTable, Row.class).print();
        
System.out.println("------------------------------------------------------");
        env.execute("job");

    }

}


---------------------------
请看，我这里String queryWindowAllDataSql = "SELECT * from kafkaSourceTable  group by 
ts,num,vin,pts,rowtime, TUMBLE(pts, INTERVAL '5' SECOND)"
如果使用TUMBLE(pts, INTERVAL '5' SECOND)"，即使用processtime就没有任何问题，可以每格几秒输出所有的内容。
打印结果：
root
 |-- ts: BIGINT
 |-- num: INT
 |-- vin: STRING
 |-- pts: TIMESTAMP(3) NOT NULL *PROCTIME*
 |-- rowtime: TIMESTAMP(3) *ROWTIME*


------------------------------------------------------
11> 1595949629063,500,AAAA,2020-07-28T15:20:29.066,2020-07-28T23:20:29
7> 1595949627062,500,BBBB,2020-07-28T15:20:27.101,2020-07-28T23:20:27
7> 1595949631067,100,EEEE,2020-07-28T15:20:31.071,2020-07-28T23:20:31
12> 1595949633072,500,BBBB,2020-07-28T15:20:33.077,2020-07-28T23:20:33
11> 1595949637081,400,EEEE,2020-07-28T15:20:37.085,2020-07-28T23:20:37
2> 1595949635077,400,BBBB,2020-07-28T15:20:35.082,2020-07-28T23:20:35
11> 1595949639085,100,EEEE,2020-07-28T15:20:39.089,2020-07-28T23:20:39
1> 1595949643093,200,CCCC,2020-07-28T15:20:43.096,2020-07-28T23:20:43


但是如果我使用TUMBLE(rowtime, INTERVAL '5' SECOND)，也就是想使用eventtime开窗，就没有任何的结果输出，一直在等待。
版本是flink1.11.0


望指教，谢谢！