I am playing a single player game and trying to build a wall to protect an area that I will be building a base in. While digging out the area and placing blocks, I came upon a section that is 1 block wide x 3 blocks long x 2 blocks deep that I am not able to place any blocks in. I have dug out 2 blocks around and 3 blocks below the affected area and nothing. I have even used the highlight and clear selection commands and still I can't build in that spot. I have also restarted the game after completely shutting down steam and re-validating the files without success.
Any suggestions?
Any suggestions?