I’ve seen the OP’s issue for several years on ~20 fog servers on various hardware platforms (virtual and bare metal), using both resized and non-resized images. I can confirm that this was still an issue on 1.5.8 but today I upgraded to 1.5.9 and it seems to be resolved. Old images still show the incorrect size, but recapturing them updates the image size on client to the correct value, which is approximately the minimum required hard drive capacity on the client when deploying the image.
B