im using joget 2.03
i found error (maybe) look like : 
this event cause i use subflow on my workflow
the workflow look like this
? 
then subflow represent the workflow : 
i dont know where the error come, because of the complex of the workflow or i just have made a mistake to set the workflow...
the result of this error, that setting make lopping to create assignment, that i can see in running process,
so how can i fix this.
thankx