Run around

Hi all again,, Some thing is wrong and I cant fathom it out so I will explain best I can.
My train goes into the loading bay and loads and I send it a few more yards up the track to a trackmark . it then uncouples and it goes past the switch , the trains heading changes, the switch changes, but the train just stays there and the runaround icon has disappeared from the bottom of the screen. Can someone help please?.
Len

I am pleased to let you know what the problem was, After the unload at command I then had uncouplez, and then runaround, all I had to do was get rid of the uncouplez command.
Len