Thats interesting. I’m not getting any staining that I’ve seen. I did try leather cleaner on it last night and the cloth was not stained (and it didn’t remove the reddish staining either), so I don’t think there is a problem with the leather. I think it is likely some chemical reaction (lotion on hands, dirty hands, etc).
I ordered a Decoded case in Blue, so I may be using that instead if it’s seems like a quality case. I really like the Nomad case, but it’s a bit bulky and not available in dark blue, otherwise I would stick with it for the duration.