The comps on Calulating a circular movement of a light-source have the “v0.9 or earlier” error for Multiply and Render Scene to Window. Do I have to use v0.9 as the message says? FR moving forward?
Yes, just follow the instructions in the message. Vuo 0.9 can be downloaded from https://vuo.org/releases .
The problem only comes up for compositions created before Vuo 0.9, and will become decreasingly common as more new compositions are created and better nodes are added (e.g. making the circular movement example obsolete).