variable Time used without having been completely initialized at line 75

I always get this error when I try to put a time node in my shader, btw a coworker made a shader with a time component that is working well, maybe it's my old videocard doing strange stuff (DX11 on DX10 GPU)

here is the console error:

Shader error in 'Shader Forge/Sun': variable '_Time' used without having been completely initialized at line 75 (on d3d11)

Compiling Fragment program with DIRECTIONAL SHADOWS_OFF LIGHTMAP_OFF DIRLIGHTMAP_OFF DYNAMICLIGHTMAP_OFF