Hi @StephanHaarmann ,
Thanks a lot for your quick reply.
I had tested using async-before on task 5 and it didn’t work. But now, I tried it again and it seems working fine! Sorry, I don’t know what was the problem last time.
But I still don’t get why this async-before is needed. I saw the explanations in this forum post, but I didn’t get it very well. I guess the token in Pool_1 should arrive Task_3 before the token in Pool_2 arrives task_5. Then, there should be no problem in correlation.
I do appreciate it if you could explain it a bit, I am new in this correlation concept.