User blog comment:Partiharn Thongprazert/Model missing in roblox making me triggered/@comment-26397550-20171119054522

Likely camera issues, unless the model is 100% made of Neon, in which it will not display.

If a model is not showing how you want published: The item will show your camera.
 * 1) Adjust your camera in studio to the view you want.
 * 2) Find "Camera" in Workspace.
 * 3) Copy "Camera" and paste it inside the model.
 * 4) Rename the Camera inside the model to "ThumbnailCamera", as capitalized.
 * 5) Publish.

(Assuming it's your model whoops)