Problem with sound not sounding after build

When I build a Unity project for the iOS platform, all the sounds in the project that sounded fine before the build (both in the Unity editor and in the Xcode simulator where the project was built) stop sounding.

I am looking for a way to find out the cause of this phenomenon and how to improve it. Your help and wisdom would be greatly appreciated.


Ventura 13.4.1

Unity (2D)


The person in charge of CRI Middleware Co., Ltd. told me how to solve the problem, so I will share the link. I finally overcame this problem and was able to release my first handmade music game in my life. So please enjoy my app called eex3x3xee!