I'm very new to this scene. I've loaded NES and it works great. When I loaded N64 the games never launch when using LaunchBox. I can go into RetroArch and load them without an issue. I'm using the same location/path of RetroArch for both, I assume this is allowed.
When I modify the Emulator, it shows the following in Launchbox: Nintendo64 -> Core: mupen64plus_libretro -> Status (Missing Core File).
When I view this in RetroArch, it shows downloaded as mupen64plus_next_libretro.dll. I renamed it to "mupen64plus_libretro" and it works but is that the correct way to fix this?