First where are you from?Maybe we speak the same language so will be better understanding each other?
When you put the audio drums you have to put the midi drums volume to zero otherwise they play both and this is confusing.You can put the Vol-0 when you see global in the left-down of the screen for all parts or press Single just for a single part of the style.Maybe this help.

For the break I know what you mean.You have to put the volume of audio guitar to zero on every break and press the break button a little earlier when playin.Or when you put the audio guitar to style make sure that in down-left sceen is wrotten single and put the guitar to arr.a then B and to on.Then the guitar will play on aranger and fills but not on breaks.But if you press the break to late the guitar will stay.They should repair this.