So does trying to pan muddy gravel completely break panning for anyone else? I just recently downloaded and tried this mod and while trying to pan some muddy gravel for a while it wasn't giving me anything. It was doing the animation and it looked like the blocks were getting shorter, but it wasn't actually deleting the blocks and giving me drops from them. I then tried to go back to panning sand and it started doing the same for sand. I knew at this point there must be some kind of glitch going on with this block. So after panning a block until it looked like it was gone, I broke the block I was placing my sand on and a sand block fell in its place. It was funny seeing a sand block just appear out of thin air. XD