Analogue-sequencer

I really haven't utilized the parts feature in the P3, and am dutifully
following along in Paul's tutorial.

However I am having the following issue.

Part 1 has only track 1 activated. Part 2 has both track 1 and 2 activated.
While the P3 is playing, this track status is confirmed as I change back and
forth between parts.

However, if I chain the parts, part 2 tracks inherit the track mute settings
from part 1 - in the above case, only track 1 will be active.

I don't think that this is the desired behavior, but I'm not sure how to set
this up so that it works properly.