Speakermode Error

Greetings, dear Fmod developers and users!
I’ve encountered a weird behavior when trying to use Fmod bank in a custom C# application, that we’ve written in our company. The purpose of this app is to play some intro while Unity engine loads. This app is using Fmod bank, as i said and the default speaker mode that we’re using is Dolby Atmos 7.4.1.The problem is that when i try to make some events in this bank louder, the loudness doesn’t affect what is happening on the output, so the situation is: the events in the bank are extremely loud, but in the app they are very quiet. Also, it seems to me that the events go to stereo on the output of the app, instead of Dolby Atmos.The code line that describes the output of the app looks like this:

var r1 = coreSystem.setSoftwareFormat(48000, SPEAKERMODE._7POINT1POINT4, 0);

r1 = ERR_INITIALIZED

Can you please help me, what are we doing wrong?Thank you so much in advance! (edited)