Yes, I used YUVA-8bit. Using RGBA-FLOAT:
I had set Multiply and Max in the wrong tracks. Correcting the error,
the result is still wrong. See image.

I have tried with old projects using Multiply and the result is
correct with RGBA and wrong with YUVA (no Reroute or other). Same
behavior with appimage.

To install CinCV I would have to put gcc9 instead of the current gcc
12; I am not very good at handling dual libraries, especially for
important things like gcc.