Factorio Forums

After finishing the tutorial and clearing all the nests and worms, I explored and found the area in the North West which is surrounded by a wall.

If you mine a wall and then replace it, it does not connect to the rest of the walls: there is a gap. Mined and replaced walls will connect with other mined and replaced walls.

Crafted walls will connect with mined and replaced walls, but not with the original walls.

Note to the one who will be fixing it: It is probably a different force of the wall causing it.

Thanks for the report.
Fixed for the next version.