There was a minor bug in the SD Card printing when a filename started with a number. That has been fixed. It might be worth while to start a thread about what you are seeing over at www.github.com/MarlinFirmware/Marlin because that is where the LCD Panel people hang out.

Have you used this SD card before on your printer? I'm wondering if there is a problem because it is a High Capacity card, or maybe it isn't formatted with an appropriate file system? I never use SD Memory cards, so I'm not going to be much help on this issue.