dicomwrite does not preserve original metadata

Hi,

I am reading the dicom info from a DICOM file and writing them to another DICOM file using

dicomwrite(image, path, imageinfo, 'CreateMode', 'Copy', 'UseMetadataBitDepths', true, 'WritePrivate', true);

I use this to preserve all original tags, however the values of the private tags are not preserved and some random arrays are generated (left is the original, right is the saved). I tried changing the function's parameters but to no avail. Can anyone help with preserving ALL tags as in the original file?

Thanks