Multisim mistake?

I am trying to simulate the attached circuit but I am getting results that I cannot interpret. Firstly, what is the 20MA result? If I am not wrong it should be 50A. Secondly, I think that I should get 20A from R6 resistor. Does anyone know why I am facing this controversy?

P.S. The total resistance which I manually calculate is equal with the software results. It is equal to 2.553Ω.

Ammeters are placed serially, not in parallel...

Thanks you very much Ian!!!
I understood my mistake, I was definitely clumsy