eNSP v300 NAT Server is NOT working on AR routers

Hello Huawei Support Team,

                                       When I try to do NAT Server with port translation I get three problem when I do "display nat session all" on AR routers

1) The output is really slow to appear

2) Initial Destination port is wrong. Should be "1234"

3) Destination port translation is not working.

See details below

interface GigabitEthernet0/0/1
 ip address 1.0.0.14 255.255.255.240 
 nat server protocol tcp global 1.0.0.5 1234 inside 192.168.0.100 ftp
 #
return


[R1]disp nat session all
  NAT Session Table Information:


     Protocol          : TCP(6)
     SrcAddr  Port Vpn : 1.0.0.1         22726                                
     DestAddr Port Vpn : 1.0.0.5         53764                                
     NAT-Info
       New SrcAddr     : ----
       New SrcPort     : ----
       New DestAddr    : 192.168.0.100  
       New DestPort    : ----