I am seeing issues running the tempest1.zip rom in the MAME folder, when using recalbox on my Ri0. This works on my Ri3. I suspect there is an emulator that is not active on the Ri0. Let me know if there is anything i can do to help.
my es_launch_stdout.log shows the following
Powering on HDMI with explicit settings (CEA mode 4)
Powering on HDMI with preferred settings
/usr/bin/retroarch -L /usr/lib/libretro/imame4all_libretro.so --config /recalbox/share/system/configs/retroarch/retroarchcustom.cfg /recalbox/share/roms/mame/tempest1.zip
SYSTEM_DIRECTORY: /recalbox/share/bios/
CONTENT_DIRECTORY: /recalbox/share/system/.config/retroarch/downloads
SAVE_DIRECTORY: /recalbox/share/saves/mame
MAME2000_SYS_DIRECTORY: /recalbox/share/bios//mame2000
MAME2000_SAVE_DIRECTORY: /recalbox/share/saves/mame/mame2000
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