Komputer bay CF card error

[Kbam]

Hi,
I upgraded my canon 5DMK3 firmware to 123 to take advantage of the features of the RAW 2.0 however my komputer bay 64GB 1000x has been failing on the camera (CARD1 ERROR) and even when i tried it on the computer it keeps failing. I know there have been issues reported with the komputer bay card, i was just surprised that this issue started immediately after the upgrade, as i still used the card few day earlier with previous ML RAW.

Just curious if anyone has experienced similar issue.