@affleck001 Add more details about your system - https://retropie.org.uk/forum/topic/3/read-this-first.
Start the game in RetroArch with the .m3u file and verbose logging enabled through the Runcommand menu (https://retropie.org.uk/docs/Runcommand/) and then get the logfile from /dev/shm/runcommand.log and upload it to pastebin.com to take a look at it.
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