Hello.

There is a customer who is using FFS on R2019x.

He wants to simulate the below case.

But Part B doesn't flow. (Please, refer to the below video.)

If Machine#10 and Machine#20 are Storages, there is First Allowed Blocking in Flow mode OUT. 

But there is not "First Allowed Blocking" on Machines.

Please, let me know how I can solve this.

Thank you in advance.