Solved Creating/Loading schematic is corrupted!

I'm trying to save a chunk into a schematic and then paste it. However it always results in making the whole chunk nothing but AIR, I believe the saving is broken, but idk.

Code:

public void saveChunkTemporary(Chunk chunk, String path)
    {
        try {
            File saveFile = new File(path);
            Block min = chunk.getBlock(0, 0, 0);
            Block max = chunk.getBlock(15, 255, 15);

            Region region = new CuboidRegion(BlockVector3.at(min.getLocation().getBlockX(), 0, min.getLocation().getBlockZ()),
                    BlockVector3.at(max.getLocation().getBlockX(), 255, max.getLocation().getBlockZ()));
            region.setWorld(BukkitAdapter.adapt(Main.instance.gameWorld));
            Clipboard clipboard = new BlockArrayClipboard(region);
            clipboard.setOrigin(region.getMinimumPoint());
            try (ClipboardWriter writer = BuiltInClipboardFormat.FAST.getWriter(new FileOutputStream(saveFile))) {
                writer.write(clipboard.lazyCopy(region));
            }
            clipboard.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

Code:

public void loadMapTemporary()
    {
        File saveFile = new File(Main.instance.getDataFolder() + File.separator + "backupdata");
        if (saveFile.listFiles() != null) {
            for (File f : saveFile.listFiles()) {
                if (!f.isDirectory() && !f.getName().equalsIgnoreCase(".ds_store")) {
                    try {
                        String[] name = f.getName().split("\\.")[0].split("_");
                        int[] coords = new int[]{Integer.parseInt(name[0]), Integer.parseInt(name[1])};
                        Chunk chunk = Main.instance.gameWorld.getChunkAt(coords[0], coords[1]);

                        Block min = chunk.getBlock(0, 0, 0);
                        Block max = chunk.getBlock(15, 255, 15);

                        Region region = new CuboidRegion(BlockVector3.at(min.getLocation().getBlockX(), 0, min.getLocation().getBlockZ()),
                                BlockVector3.at(max.getLocation().getBlockX(), 255, max.getLocation().getBlockZ()));
                        region.setWorld(BukkitAdapter.adapt(Main.instance.gameWorld));
                        try (ClipboardReader reader = BuiltInClipboardFormat.SPONGE_SCHEMATIC.getReader(new FileInputStream(f)))
                        {
                            Clipboard clipboard = reader.read();
                            clipboard.paste(BukkitAdapter.adapt(Main.instance.gameWorld), region.getMinimumPoint());
                            clipboard.close();
                        }
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

Turns out this code is COMPLETELY wrong. I have now fixed it.