I've had kind of the opposite happen and it was dependent on a couple seemingly unrelated settings. If I used the Take Lane mute buttons to mute previous takes and used the R key on my keyboard to trigger recording at least one previous take would playback. If I manually muted the clips in the takes... it didn't happen. If I used the Transport Module to start recording... it didn't happen.
Kind of a perfect storm for that bug and it isn't consistent. I just select the clips and mute them instead of using the Take Lane mute. In fact all of those take lane MSR buttons are buggy as all heck.
We need a patch... especially for us Win7 users.