So I just set one of these up on birches with a simple RP2 piping and barrels to store everything. Magmatic engine powered by nether lava for power. I noticed that when using the Fertilizer it causes the trees to sometimes spawn right where a tree was just cut down by the harvester. This ends up having the very bottom block of the tree cut before anything else so the harvester doesn't recognize the tree and no more can grow because the tree takes up all the space. Has anyone else run into this problem and/or come up with a solution aside from not using the Fertilizer?