Craft ghosting

[Spartwo]

When edited in any way outside of game, craft files will load up but have no physical properties(Mass, Dimensions, part count), be treated as a new craft, and each part is interactable but disconnected from any other parts.

KSP setup:

-Hyperedit and Kerbal engineer installed(1.1 versions)

-Windows 10

-Sandbox

I've reproduced this with other craft and others have had the same results when sent the modified files. The modification made was by changing the name within the first line. The breakage is permanent as attempts  remedy would involve editing the file. Modified using wordpad.

Did not occur pre-1.1