Why can't I see the return value of port 30003 in the dashboard?

Why can’t I see the return value of port 30003 in the dashboard?

look at the number 1.
If you look at the socket test program, you can see that the stopj(2) command has been sent.

look at the number 2.
If you look at the universal robot program, you can see that the stopj(2) command has been sent.

I can send commands to port 30003 from the dashboard, but why am I not getting a return value?