DSL-AC52U assign manual ip

I have assigned 2 ips in the manual section as you can see in the attached pic
192.168.1.3 assigned to 192.168.1.30
192.168.1.15 assigned to 192.168.1.50
But when i go back to the Network map screen 1 of the ips that i assigned remain the same ip numbers.
Have they been assigned to the new numbers or not?
Please look at the pics