Something in ATM8 modpack is causing oak trees to grow large that the Canopy Diminisher does not recognize. I set up a small Botania tree farm, and the Canopy Diminisher is working and occasionally generates some Aura. However fairly often a large size oak will grow within the Canopy's operating area. To my non expert eye, it seems like it's working fine for "vanilla large tree growth" but something is causing it to grow large trees in a non-vanilla way.