GCP / cloud elevations

If someone could give me a hand. I’ve got my point cloud/ GCP’s to come in, in the correct location (northing and easting) but the elevation comes in about 1800 feet low? I know I misused the wrong height, when I used ortho instead of ellipsoid, but that can’t be the only thing wrong?
Thanks
Ron

@rrobinson it is likely a meters / feet issue. If you can give a project id, we can take a look.