Yesterday, I've downloaded the image Armbian_19.11.6_Cubieboard2_buster_current_5.4.8 i tried out, but doesn't work. I check the checksum and tried both methods to SD Card: dd and Etcher. The result was the same, after the copy the SD Card remains unformatted.
By the way, the bionic image is ok. Tried too.
So, open the a new topic is the correct form to inform bugs? I'm armbian fan, and i want to help. I can help, testing with my Cubieboard2.