Mp2 Trigger only triggers with certain SC card

I hav an SD card that will not open on my PC but will only play on 1 of my mp3 boards and on this board this is the only card that will work with the #1 trigger.

If I put another card in this sound board I can toggle it to work but the #1 trigger wont make it play.

Hasthis board been programed differant?

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