Hi there, Hakuen!
I have found, installed, and configured your most recent Zoom Plugin Update. I am unfortunately having the same issue as last time. The camera does not follow characters all the way to the top or the bottom of the screen. Perhaps the edges/border of the primary camera are colliding with the walls of the maps, stopping them from moving and continuing to follow the player? This is just my guess. I think I sent you video of this problem last time to help you diagnose but maybe I am thinking of a different troubleshooting video I made recently.
Let me know if you need a video to better see what I am talking about.