So few days ago, I saw a D prisoner in the A mine and I asked him how he got to the mine, he showed me a way on how to get there while being D-C-B. To get there, all you got to do is go to the wood mine (Located at the other side of /warp dmine) and turn left. After that you just go forward till you go through this tunnel kind of thing, which is supposed to be closed with barriers. When you go through that you can instantly come to the A mine Thats the whole bug, it needs to be fixed because I saw multiple D-Prisoners who go mine diamonds and have a great start @Dyna_Mighty
What I will do is block it up until Cyp can get on the regions corrected there. I don't know how to specifically do that and I don't want to try anything and mess it up.