was about 20 blocks deep and just went straight down to bedrock and stopped no error

[donomitekid]

had 1 stack of coal, 2 chests, and a full stack of cobble when i started a "mine 12 -66 12" command. the turtle mined normal and when about 20 blocks down the square it dove straight down then a little further inward and stopped with no error message

[donomitekid]

the gui is locked as if the program is running.

[Equbuxu]

It likely dove straight down to place a chest (places for chests are always allocated at the bottom of the area you are digging). Could it be that it hit bedrock before getting all the way down, which either prevented it from advancing or from placing the chest? (yeah, ik it's been like 5 months)