Single Rotator connected to vertex offset and other main output.

The Rotator node throws the error "undeclared identifier 'node_xxxxx_piv' at line xx" if the same node is connected to the vertex offset and one or more main output directly or indirectly ( from a texture to the diffuse and vertex offset for example), with or without any input connected to the rotator (UVs always are of course).

The error can be avoided by using a second rotator with the same input and connect thatone to the vertex offset.