Albumen print problem

My albumen prints that are float sensitized turn yellow after drying. I refurbished the silver and still had problems. The prints that are brush sensitized are good. I thaught the paper might have a problem but making prints from the same sheet and sensitized one on silver and the other with brush shpwed it is not the paper. I used to get excellent prints from float sensitizing, the problem happened with a new sensitizer before and after using kaolin.

Can't help but I'm subscribed to see what thoughts others have.