Ghost binaries build v12.x.x (GSS 3.2 and 3.3)
Currently known product limitation
Seems to be mainly affecting BIOS (MBR) images, rather than EFI(GPT), and mostly reported with Single-Partition image.
Issue is not always reproducible. It's currently under review by engineering and expected to be resolved in coming release of GSS 3.3 RU9.
Tech Support generally does not recommended to modify images and if possible avoid this step.
It's highly recommended to use product functionality (Ghost Solution Suite) and copy/add files to the target machine using additional tasks/scripts after image has been deployed.
Or when imaging is performed using Ghost Standard Tools version, then have additional scripts added which would be executed based on requirements.