Create PPU Caches all titles doesn't seem to work for Disc games.

New to the forum here and would like to say yes again......Hello fellow PS3 lovers.  Second, wow to the team that is developing this thing. I'm sure a lot of hard work/sweat/and tears go into the work here.

With all that being said on to my question. I have searched all over online and found an old post about creating PPU caches for all titles through the RPCS3 menu.  From what I read at least from an old 2020 post was that this does not work for my Disc backup games. Doe anyone know if this is true. From what I gather it does not seem to use the created caches and I have to create PPU caches individually for each game.

Thanks all..

RPCS3 version I am on is (0.0.21-13334-00f67632 Alpha)