So, playing on a DireWolf20 server, I built a MFR Harvester, thinking I should finally automate my rubber tree farm. The Planter part of the farm seems to work fine, but the Harvester... is psychotic. At first it looked normal, cutting down trees in a smallish area. So I opted for an upgrade, and incautiously installed a diamond upgrade. Yowza! Wood flying everywhere!
After the Harvester cut down most of the forest in the biome, I tried to reduce the area of harvest. First I put in an iron upgrade, instead of the diamond. Still cut down everything in sight. Then I picked up the Harvester, stored it away, and built a new one. Now the new one is chopping down trees in random chunks roughly in a straight line away from the cutting surface. A long straight line. At last view; four chunks away. WTF?
Is there some trick to using a MFR Harvester on _just_ a small area? The thing is like Frankenstein's monster.