Multichannel Audio - Disabled Tracks

Hi all,

I'm using multichannel audio in my project. The audio files have a stereo dialogue track and a stereo effects track. Each track has been assigned a role.

I am disabling the audio by unticking the audio channels in the inspector.

If I have a clip in my timeline with just the effects activated then just those effects are taken into the AAF and appear in Logic.

However, when I have a clip with just the dialogue activated both the dialogue AND the effects are taken into the AAF and appear in the Logic.

Is this a bug or am I doing something wrong?

I attach files for your perusal.