PNES & PSNES rom list not appearing

I'm new to the Switch homebrew scene so I thought I'd start off with something simple like NES and SNES emulation. I got my CFW working and PNES and PSNES downloaded, and I downloaded my romsets into what I believe are the correct directories, but the game list isn't appearing in either emulator

pSNES: Switch Snes9x port, Page 49

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