With Freelancers and Coworkers I found out that the Mux way isn’t commented good enough; therefore resulting in wrong or messed up versions. So I tried around making the workflow more clear and came to a very simple solution, that kinda fixes it.
The rendernodes now have a buffer, that burns in a red flag if the master_switch doesn’t match the rendernode. Visible not only in the render, but, thanks to the output preview, directly in the schematic. Also I scrapped the python script for now to use a manual master mux again.
Now I’m wondering. When you open a foreign setup to do some tweaks in it, and you see this. Would you understand it or am I still missing some Text-note with actual comments or sth else to make it clear?