single path idial current not floowing threw transistor

Hello i Have ,defined 50uA idial current source which is suppose to flow straight to diode connected mosfet bellow.The other side of the current source connected to VDD.

As you cant see bellow , all the transistors expect one are saturated,so the transistor is not in cuttoff.The whole 50uA supposed too run threw both series connected transistors .

Why only 14u flowing threw it?

Thanks