UMCLI show -detail or show ( replication check cmd )

HI there ... does anybody know why replication status section done empty ?

10:   ID                           = 171798692301_APM00163433116_0000_171798692031_xxx_0000

     Name                         = rep_sess_res_75_res_60_APM00163433116_xxx

     Session type                 = file

     Synchronization type         = auto

     RPO                          = 10m

     Resource type                = File System

     Sync State                   = idle

     Health state                 = OK (5)

     Health details               = "This replication session is operating normally. No action is required."

     Operational status           = Auto Sync Configured (0x8405)

     Source status                = OK

     Destination status           = OK

     Network status               = OK

     Destination type             = remote

     Destination system           = RS_3

     Local role                   = Source

     Source resource              = res_75

     Source SP-A interface        = 10.241.xxx.28

     Source SP-B interface        = 10.241.xxx.29

     Destination resource         = res_60

     Destination SP-A interface   = 10.241.xxx.30

     Destination SP-B interface   = 10.241.xxx.22

     Time of last sync            = 2017-05-18 05:19:05

     Sync status                  = <<<<

     Sync transfer rate           = N/A

     Sync transfer size remaining = 0

     Previous transfer rate       = 110 MB/s

     Average transfer rate        = 110 MB/s

     Element pairs                = N/A