MpegH audio problem on objects

If I open the Mpeg H project, the following happens. Only the first mono channel set on the object is heard and the second is not heard. Also, if I create a new track, it is not heard either.

On the stereo tracks, the objects placed on them are heard, but if I create a new stereo track on which I place an object, it is not heard either. The beds are all heard without problems. I also have no problems with Dolby Atmos, but only with the MPEG H project.

If I create a new Mpeg H project, I have exactly the same problem. The objects are not heard. I don’t think I’m doing something wrong with the settings. However, I will also describe the settings I make.

In ADM Authoring, I created a bed track that generated a Group track in the main work window with the output on RENDERER 7.1.4. When I create a new mono track, I select it, go to ADM Authoring and apply the create object from selected track command, I check that the track has the RENDERER 7.1.4 output. In the RENDERER FOR MPEG H plugin I notice that the signal is coming in but it is not coming out, it is just coming in. In Studio-Auduo Connections RENDERER 7.1.4 as main MIX and in the Control Room the sound is coming out on the headphones. However, I cannot hear the tracks with objects on them. I want you to tell me if there is a mistake somewhere or if there is a problem in the application. I have Nuendo 14.0.41 but with 14.0.32 it was exactly the same problem. I use Steinberg UR24C. I am on Windows 11.

Please make your request easy to follow. I added some paragraphs to reduce the wall of text effect.