I use multi-track video (Enhanced Broadcasting). However, for the past few days, I've been accepted into the beta program for the dual format (vertical and horizontal live stream), but the multi-track (Enhanced Broadcasting) system is no longer working.

In addition, I can no longer stream in mono-track video.

Is it possible to leave the beta program for the dual format (vertical and horizontal live stream) and revert to the horizontal format only?

(Sorry for any spelling or grammar mistakes; I used Google Translate for this post because my written English is terrible.)