My solution to something like this would be not to merge before using a Material node on each piece of geometry individually first, so that each of your materials link to a specific UV map and not all of them merged together.
My solution to something like this would be not to merge before using a Material node on each piece of geometry individually first, so that each of your materials link to a specific UV map and not all of them merged together.
Thank you so very much @Midphase
I will follow your thread and try what you suggest there