That's good news I think. I have some prints on RC paper hanging on the wall in mixed light condition for 7 years now. Behind the glass. No changes. And why they should occur ? Emulsion is the same silver halide in gelatine. What I understand the main danger for RC paper is the separation of plastic layer from the paper base in certain conditions, as the plastic may deteriorate much faster, than a paper, just by itself, due to basically unstable characteristics of plastic. Otherwise everything else is like with FB.