Dear Ninh Bui,
Unfortunately, I can’t comment or provide feedback before I have access to the project to debug it and figure out the issue. You may email me the project layout as a zip file to my email at ahmad.atieh@optiwave.com. You can’t send the file over the forum and you can’t send it to my email without zipping.
Please let me know the version of OptiSystem that you are using?
Regards,
Ahmad