AnyLogic 8.7.3输送机ImplestationController上的物料处理库异常

我对AnyLogic 8.7.3有一个相当奇怪的问题，它似乎与物料处理库的输送机入口块有关。该问题在每次模拟的同一离散步骤中出现，即使进行了一些小的修改，例如添加新队列。当然，如果我在时间上做了重大的改变，它会在截然不同的时间发生。它经常发生在运行的很晚的时候（不总是），例如在步骤428k。否则，调试就很奇怪，也很困难。控制台输出如下：

Exception during discrete event execution:
Index 0 out of bounds for length 0
java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
    at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
    at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
    at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248)
    at java.base/java.util.Objects.checkIndex(Objects.java:372)
    at java.base/java.util.ArrayList.get(ArrayList.java:458)
    at com.anylogic.libraries.material_handling.ConveyorSimpleStationController_xjal.S(Unknown Source)
    at com.anylogic.libraries.material_handling.ConveyorSimpleStationController_xjal.a(Unknown Source)
    at com.anylogic.libraries.material_handling.ConveyorSimpleStationController_xjal.a(Unknown Source)
    at com.anylogic.libraries.material_handling.ConveyorSimpleStationController_xjal$4.onExit(Unknown Source)
    at com.anylogic.libraries.processmodeling.Source.q(Unknown Source)
    at com.anylogic.libraries.processmodeling.Source.q(Unknown Source)
    at com.anylogic.libraries.processmodeling.Source$1.onEnter(Unknown Source)
    at com.anylogic.libraries.processmodeling.Enter.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.Enter.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.Enter$1.onExit(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer$1.onExit(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$1.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.InPort.receiveImmediately(Unknown Source)
    at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.forwardReadyEntityNotification(Unknown Source)
    at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$2.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$2.action(Unknown Source)
    at com.anylogic.libraries.processmodeling.AsynchronousExecutor_xjal$a.execute(Unknown Source)
    at com.anylogic.engine.LibraryEventHandler$b.execute(Unknown Source)
    at com.anylogic.engine.Engine.j(Unknown Source)
    at com.anylogic.engine.Engine.fn(Unknown Source)
    at com.anylogic.engine.Engine.e(Unknown Source)
    at com.anylogic.engine.Engine$b.run(Unknown Source)

此外，它停止的事件是：

root.conveyorEnter.conveyorEnter.?<MHLSettings>.conveyorSystems_xjal[0].simpleStationControllers[4].transition1

root.transferorenter.transferorenter.？.transferorSystems_xjal[0]。SimpleStationController[4]。转换1

所以我可以说它与物料处理库有关，在输送机的简单站控制器上。在调试屏幕中单击此错误时，会显示模型中的单个“输送机入口”块。然而，尽管该块已经激活并工作了好几次，但奇怪的是，在发生错误时，它没有做任何事情——没有任何东西进入或退出该块。模型GUI也不会显示块的任何问题（例如阻塞的端口）

关于我的模型，唯一有点不寻常的是，主输送线形成了一个回路——然而，考虑到模型可以运行这么长时间而不会出现问题，我不认为这是原因，否则模型逻辑工作得很好

我将非常感谢任何帮助。非常感谢