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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
I actually tested both of those cases on the Espruino board before committing and they worked fine. I tested again just now and they're still fine, so I'm not sure what's different with your setup.
Are you sure you actually removed the card totally, and that you re-inserted it properly? Could there be a dodgy connection to the add-in board?