Mednafen PSX also fails, but it looks like it’s not RAM related:
I/RetroArch: ( 5422): Version of libretro API: 1
I/RetroArch: ( 5422): Compiled against API: 1
I/RetroArch: ( 5422): Environ GET_LOG_INTERFACE.
I/RetroArch: ( 5422): Environ SYSTEM_DIRECTORY: “/storage/emulated/0/roms/”.
I/RetroArch: ( 5422): Environ SAVE_DIRECTORY: “”.
I/RetroArch [WARN] :: [libretro WARN] :: ( 5422): Save directory is not defined. Fallback on using SYSTEM directory …
I/RetroArch: ( 5422): Environ SET_DISK_CONTROL_INTERFACE.
I/RetroArch: ( 5422): Environ PERFORMANCE_LEVEL: 3.
I/RetroArch: ( 5422): ROM loading skipped. Implementation will load it on its own.
I/RetroArch: ( 5422): Environ SET_PIXEL_FORMAT: XRGB8888.
I/RetroArch: ( 5422): Environ GET_OVERSCAN: 0
I/RetroArch: ( 5422): Environ GET_VARIABLE psx_enable_dual_analog_type:
I/RetroArch: ( 5422): disabled
I/RetroArch: ( 5422): Environ GET_VARIABLE psx_fastboot:
I/RetroArch: ( 5422): disabled
I/RetroArch: ( 5422): Environ GET_VARIABLE psx_enable_multitap_port1:
I/RetroArch: ( 5422): disabled
I/RetroArch: ( 5422): Environ GET_VARIABLE psx_enable_multitap_port2:
I/RetroArch: ( 5422): disabled
I/RetroArch: ( 5422): Environ GET_RUMBLE_INTERFACE.
I/RetroArch: [libretro INFO] :: ( 5422): Rumble interface supported!
I/RetroArch [ERROR] :: ( 5422): Failed to load game.
I/RetroArch: ( 5422): Monitor FPS estimation is disabled for threaded video.
I/RetroArch: [libretro INFO] :: ( 5422): [Mednafen PSX]: Samples / Frame: nan
I/RetroArch: [libretro INFO] :: ( 5422): [Mednafen PSX]: Estimated FPS: nan
I/RetroArch [ERROR] :: ( 5422): rarch_main_init_wrap() failed.
I/RetroArch: ( 5422): GL VSync => on
But I’m not sure Mednafen PSX ever worked since I always used PCSX-ReARMed…