Hello! Hello, everyone
Recently, I have encountered a problem and I would appreciate it if everyone could offer some assistance.

This is the layout plan of the factory:

The process flow is as follows:

• Raw material - OP10 - OP20 - external processing outside the production line - OP30
• For each process, the dedicated fixtures for disassembly and installation at the loading/unloading station must be used before and after the process.
• The AGV requires one pick-up and one placement for the machine tool.

When the capacity of the AGV was set to "1", the simulation could run normally：

 To increase the utilization rate of the AGV, when the capacity was set to "2", the AGV stopped running：

I don't know how to keep him running normally,haha.This is the original document.：

Thank you for your help.