Next scene is loading in the Engine, but not in the Build! Help please

Hello, I'm making a 2d platformer game quite some time, and I don't have the problems with loading another scene in the build when I was working another scene.

Right now I have 8 scenes and the 7 scenes of 8 are loading fine in the build, but when I'm trying to load any scene after the first level, everything is not loading.

But I the engine itself everything loading superfast!

Of course, I thought that the problem is the level, that it has many memory usages. After that I added the script, that delete everything from the level except the UI, and I made that after that the next level need to load, but this is not working too. So when the inspector does not show what can make the problem here, I'm asking for help here, because I don't understand what can make such a problem when there is nothing on the scene before I'm starting to load the next, and it's not loading.

Maybe I need to check something? What can cause the problem?

*I'm also tried to load the scene Async, so I made the script, And everything is loading very fast at the beginning of the level1 so at the beginning of the level1 I can super fast load level2, but at the end of the level1 everything is "stucks" when its time to load level2.