@shelly L3 the queue object is placed inside your operator (take a look at the tree view to see that) this probably happened because you had a wrong reference at some point in your model and instead of loading the flowitem you loaded the queue. Anyway if you move the queue back in the model (using the "Edit Selected Objects" for instance) the model works again. It still gives a bug in the Load task . I think you wrote there "Item Container" instead of selecting it from the drop down options. So if you select that option again from the dropdown your model works fine.
