New entering items are stacked. Entered items are located but without any recognition of size. FlexSim has not got a physical engine that respects any physical impact of features at all. If you are changing a location, a rotation, a size you are responsible for the result. Any visual order in a queue has not any influence of the order of processing those items in releasing them.
You expects something that you have watched in reality, but this is not how it works in a simulation.
There are two mechanism present in FlexSim. A 3D logic, which consists of a strict rule set to distribute items, and there is Process Flow that let you define your own mechanism of flow.
back to stacking of items if they are entering a queue. There is a field on input slate that is called stacking method. Here you can select a procedure how a default routine is processed. If you choose do nothing all items are located in the center. If you use on entry event you can locate an involved item by script code wherever you want.
