Custom table properties get overwritten.

[reepblue]

If you were to save this as a material, open it the editor, then do File -> Save on it, the custom property (myproperty) will be deleted.

{
	"material": {
		"displacement": [
			0.05000000074505806,
			-0.02500000037252903
		],
		"metallic": 0.0,
		"roughness": 1.0,
		"shaderfamily": "Shaders/PBR.fam",
		"shadow": true,
		"texture0": "./grid01.dds",
		"texture1": "./grid_normal.dds",
		"myproperty": 1
	}
}

I want to store the surface property in the material without worrying about it getting overwritten. 

[Josh]

Fixed.

Note that your custom properties should be stored in an "extras" object:

{
	"material": {
		"shaderfamily": "Shaders/PBR.fam",
		"texture0": "./grid01.dds",
		"extras": {
			"myproperty": 3
		}
	}
}