Marc and anyone else who has had a ricordea to bleach. There are numerous reasons for bleaching, but the one thing I have experienced for sure, and it may take up to a year, but they can, will and have returned to their original coloration. As long as the polyp is alive and fully attached, you have a great chance. If the flesh is torn or severely damage, it is nearly impossible.
I had a stunning banana yellow, not light orange, it was true banana, and it bleached due to some shading that I wasn't aware of. Once the bleaching began, I couldn't stop it. I placed it on the side of my reef where it only received indirect reflected lighting. I redirected a single return hose to hit that side of the glass. I never moved the polyp unless I had to clean around it. It took close to a year, and yes, the color was fully restored. The problem I see is that many reefers give up on the ugly white/creamy looking colorless ric and trash it. If you simple secure it and leave it, minus a direct spray of lighting, it will fully recover, but it will take many many months of patience. It's no big secret either, just wanted you to know that you do indeed have a chance.
Just noticed that you said it was shriveled. How bad is it?
Mucho