Another unexpected behaviour, which happens only for PXC 5.5 tough - when a node that is the event "owner", so the only one that has Status=ENABLED, is re-created using SST from any other node, it looses the event information. 
In PXC 5.6, the event gets re-created but in Status=SLAVESIDE_DISABLED.

Simple test scenario:

percona1 mysql> show create table t1\G
*************************** 1. row ***************************
       Table: t1
Create Table: CREATE TABLE `t1` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `time` datetime DEFAULT NULL,
  `server` varchar(20) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
1 row in set (0.00 sec)

  percona1 mysql> CREATE EVENT e_min ON SCHEDULE EVERY 1 MINUTE DO  INSERT INTO test.t1 values (null,now(),@@SERVER_ID);
Query OK, 0 rows affected (0.05 sec)

percona1 mysql> show events\G
*************************** 1. row ***************************
                  Db: test
                Name: e_min
             Definer: root@localhost
           Time zone: SYSTEM
                Type: RECURRING
          Execute at: NULL
      Interval value: 1
      Interval field: MINUTE
              Starts: 2014-04-26 11:45:19
                Ends: NULL
              Status: ENABLED
          Originator: 0
character_set_client: latin1
collation_connection: latin1_swedish_ci
  Database Collation: latin1_swedish_ci
1 row in set (0.00 sec)

percona5 mysql> show events\G
*************************** 1. row ***************************
                  Db: test
                Name: e_min
             Definer: root@localhost
           Time zone: SYSTEM
                Type: RECURRING
          Execute at: NULL
      Interval value: 1
      Interval field: MINUTE
              Starts: 2014-04-26 11:45:19
                Ends: NULL
              Status: SLAVESIDE_DISABLED
          Originator: 0
character_set_client: latin1
collation_connection: latin1_swedish_ci
  Database Collation: latin1_swedish_ci
1 row in set (0.00 sec)

percona2 mysql> select * from t1;
+----+---------------------+--------+
| id | time                | server |
+----+---------------------+--------+
|  2 | 2014-04-26 11:53:19 | 1      |
| 11 | 2014-04-26 11:54:19 | 1      |
| 20 | 2014-04-26 11:55:19 | 1      |
+----+---------------------+--------+
3 rows in set (0.00 sec)

[root@percona1 ~]# /etc/init.d/mysql stop 
Shutting down MySQL (Percona XtraDB Cluster)....... SUCCESS! 
[root@percona1 ~]# rm -fr /var/lib/mysql/*

[root@percona1 ~]# /etc/init.d/mysql start
Starting MySQL (Percona XtraDB Cluster).....SST in progress, setting sleep higher
... SUCCESS! 
[root@percona1 ~]# mysql test
(...)
percona1 mysql> show events;
Empty set (0.00 sec)

percona1 mysql> select * from information_schema.events;
Empty set (0.00 sec)

percona5 mysql> select * from information_schema.events\G
*************************** 1. row ***************************
       EVENT_CATALOG: def
        EVENT_SCHEMA: test
          EVENT_NAME: e_min
             DEFINER: @
           TIME_ZONE: SYSTEM
          EVENT_BODY: SQL
    EVENT_DEFINITION: INSERT INTO test.t1 values (null,now(),@@SERVER_ID)
          EVENT_TYPE: RECURRING
          EXECUTE_AT: NULL
      INTERVAL_VALUE: 1
      INTERVAL_FIELD: MINUTE
            SQL_MODE: 
              STARTS: 2014-04-26 11:45:19
                ENDS: NULL
              STATUS: SLAVESIDE_DISABLED
       ON_COMPLETION: NOT PRESERVE
             CREATED: 2014-04-26 11:45:19
        LAST_ALTERED: 2014-04-26 11:50:56
       LAST_EXECUTED: NULL
       EVENT_COMMENT: 
          ORIGINATOR: 1
CHARACTER_SET_CLIENT: latin1
COLLATION_CONNECTION: latin1_swedish_ci
  DATABASE_COLLATION: latin1_swedish_ci
1 row in set (0.00 sec)