4.2.2 Audio Dropout back after a month !

After this post :https://forums.pioneerdj.com/hc/en-us/community/posts/208226243-4-2-1-Audio-Dropout 

and this request https://forums.pioneerdj.com/hc/en-us/requests/12530

after month without any dropouts, i get it yesterday , once at nigh, when only single left deck was played ! please help .