Old Beetle PSX save games from September of last year no longer work

Hi guys, I’m trying to figure out why my Castlevania: SOTN saves no longer load. I recently updated RetroArch. I still have the .mcr file in saves\Beetle PSX, it’s called “Castlevania - Symphony of the Night (USA).1.mcr”. I tried renaming it to Castlevania - Symphony of the Night (USA).0.mcr thinking that might make a difference but no luck.