Summary of the problem [2.5.5] OreExcavator does not recognize similar log blocks as same Pack Version 2.5.4 What is the bug? Some trees have similar (by metadata) log blocks in the world to form trees (sideways, or different edges), and OE does not see those as connected when chain harvesting. Veinminer did this correctly, but I think the VM configs had a few lines to tell that certain similar blocks were "the same". Not sure if OE has a similar connection override method. The main one I found this with was on Natura's bloodwood (red upside down trees, natura:bloodwood), as each of the edges is a different block with meta data 0-3. This means the 2x2 trunk is requires 4 separate connected harvests. Plus another for the "root" blocks (which are meta 15), but those were always a different vein anyways. This will likely also cause items with different "states" such as redstone ore to also fail being connected mined. Mod & Version OreExcavation 1.1.23 Link to log file Is it repeatable? Yes Known Fix If OE supports some sort of override of which blocks are "the same", some items need to be exacted from the old 2.5.4 veinminer config, and added to the OE config.