when i restart the shader turn to all black

I made a glass shade and it is fine.
but when i restart the unity. 
the shade turn to all black. 

if i open shader forge relink some node .
let it to compile shader then it become to normal(same as before restart unity).

my shader forge is Beta 0.34.
SF and  Unity are not crash.
this is my code.
https://drive.google.com/file/d/0B5xWQZOyRYBpNzYtWVdQTGI0U1U/edit?usp=sharing