Hi as the later version is quite strict towards error, there is an Index out of bound error in the Dispatcher when round robin if available is applied.
time: 6.838358 exception: FlexScript exception: Array index out of bounds at MODEL:/Dispatcher1>variables/passto
A code need to added to reset the label "fs_lastport" back to 1 before assignment of the curobj object.
if (curlabel.value > current.outObjects.length) current.fs_lastport = 1;
treenode curobj = current.outObjects[curlabel.value];
David