Yep! 2.2 has been working perfectly without a single problem. After updating to the 2.3 I got corrupted files, so it was quite obvious that problem was with the firmware update. Now back to 2.2 and going strong!
37,80€ (ex. VAT) at least in Deherrieboerderij. http://www.setgearshop.nl/webshop/geluid/microfoon-accessoires/lavalier-accessoires/detail/795/hide-a-mic---zwart---kit-van-4.html
That happened for me few times with Nomad, format the card with computer and you should be good to go! It's of course also possible that the card is actually broken, for me the formatting with computer worked.
All that and pelican, isn't that still too heavy for carry-on? No blimp at all? This is really beautiful project Rado, I'm thinking about trying out similar bag design for Nomad+QRX100+Audioroot battery and distro.