I sent the SD card, you should have them soon.
Error code 470 means the SD card failed to wake up after a sleep.
If Ville’s advice does not help (it’s good advice, thank you ville!): Since you’ve confirmed that you’re working with multiple SD cards, I worry that you might just have a weirdly flaky meter. If you find the logging issue persists with the known good SD cards I sent you, I’ll replace your meter. One way or another we will get to the bottom of this!