user_permission '.*' command failed to show all table permissions

hbase(main):001:0>  grant 'user3', 'RW'
Took 0.4144 seconds                                                                                                                                                                            
hbase(main):002:0> user_permission 
User                                             Namespace,Table,Family,Qualifier:Permission                                                                                                   
 user2                                           ,,,: [Permission: actions=READ,WRITE]                                                                                                         
 user3                                           ,,,: [Permission: actions=READ,WRITE]                                                                                                         
 hbaseadmin                                      ,,,: [Permission: actions=READ,WRITE,EXEC,CREATE,ADMIN]                                                                                       
3 row(s)
Took 0.0445 seconds                                                                                                                                                                            
hbase(main):003:0> user_permission '.*'
User                                             Namespace,Table,Family,Qualifier:Permission                                                                                                   
 user1                                           default,t1,,: [Permission: actions=READ,WRITE]                                                                                                
 hbaseadmin                                      default,t1,,: [Permission: actions=READ,WRITE,EXEC,CREATE,ADMIN]                                                                              ERROR: failed to coerce org.apache.hadoop.hbase.security.access.GlobalPermission to org.apache.hadoop.hbase.security.access.TablePermissionFor usage try 'help "user_permission"'Took 0.0940 seconds