BlastEm can't open roms with a space in their directory

[GerardGascon]

When I try to load a rom and its directory has a space in it (ex: C:\random folder\rom.bin), it pop ups an error that says "Failed to open C:\random for reading"

[vgambier]

In my case, it was not a space issue, it was a sandbox flatpak permission issue. You can either use Flatseal or you can pass the --filesystem argument when running the flatpak. Worked for me.