LAS / LAZ Shuffle in custom attributes in QGIS about laspy HOT 7 CLOSED

import laspy
import numpy as np

# 0. Creating some dummy data
my_data_xx, my_data_yy = np.meshgrid(np.linspace(-20, 20, 15), np.linspace(-20, 20, 15))
my_data_zz = my_data_xx ** 2 + 0.25 * my_data_yy ** 2
my_data = np.hstack((my_data_xx.reshape((-1, 1)), my_data_yy.reshape((-1, 1)), my_data_zz.reshape((-1, 1))))

# 1. Create a new header
import pyproj
header = laspy.LasHeader(point_format=6, version="1.4")
header.add_crs(pyproj.CRS("EPSG:4326"))
header.add_extra_dim(laspy.ExtraBytesParams(name="random24", type=np.int32))
header.add_extra_dim(laspy.ExtraBytesParams(name="random42", type=np.int32))
header.add_extra_dim(laspy.ExtraBytesParams(name="random24f", type=np.float64))
header.add_extra_dim(laspy.ExtraBytesParams(name="random42f", type=np.float64))
header.offsets = np.min(my_data, axis=0)
header.scales = np.array([0.1, 0.1, 0.1])

# 2. Create a Las
las = laspy.LasData(header)

las.x = my_data[:, 0]
las.y = my_data[:, 1]
las.z = my_data[:, 2]
las.random42 = np.full(len(las.points), 42, np.int32)
las.random24 = np.full(len(las.points), 24, np.int32)
las.random42f = np.full(len(las.points), 42.0, np.float64)
las.random24f = np.full(len(las.points), 24.0, np.float64)

las.write("new_file.las")

def write_mag(path: Path, data: npt.NDArray[np.float_], epsg_proj: int) -> None:
    header = laspy.LasHeader(point_format=3, version="1.4")
    header.add_crs(pyproj.CRS(f"EPSG:{epsg_proj}"))
    las = laspy.LasData(header)
    las.add_extra_dims(
        [
            laspy.ExtraBytesParams(name="bx", type=data["bx"].dtype),
            laspy.ExtraBytesParams(name="by", type=data["by"].dtype),
            laspy.ExtraBytesParams(name="bz", type=data["bz"].dtype),
            laspy.ExtraBytesParams(name="b", type=data["b"].dtype),
        ],
    )
    las.x = data["x"]
    las.y = data["y"]
    las.z = data["z"]
    las.bx = data["bx"]
    las.by = data["by"]
    las.bz = data["bz"]
    las.b = data["b"]
    las.write(str(path), laz_backend=laspy.LazBackend.LazrsParallel)
    logger.info("Wrote LAS file to %s", path)