I did everything as it should be, but for some reason it does not work.
1. I created a special preloader layout
2. Installed to use it
3. Disabled standard
But it does not work, when it starts up, it is loaded with white (Or any color that is assigned to the whole project) and the next screen starts immediately after the loading screen. (Since there is a trigger to go to the beginning of the game after booting.)
Even I remove all the triggers, then at first just load the background, then as it loads, my loading screen is loaded.