CCR no micro sd functionality?

CCR-1009-8G-1S-1S+ at 6.35.2
Cannot get micro sd cards to recognize. Tried a 1,2,4,8,16GB card, tried rebooting and full power cycle to recognize. Ideas?

note, flash drive plugged into from w/ usb adapter works fine.

same device and routeros here.

  • start the device. → no card.
  • remove reinsert card
  • reboot device → card visible and usable
  • on next reboot → no card

Could that procedure also work for you?
For me it looks like a bug in recognize the cards.