Factorio Forums

I stumbled upon this bug accidentally when entering my base, when I found myself unable to move and inside a wall, shown here:
I reproduced the bug after breaking and replacing the wall, without moving.

I could also reproduce the bug after moving without pixel perfect movements, I can be most areas in the block.

This has probably been reported before, but better safe than sorry.

This happened to me also. In the save I'm trapped in a wall.

I think it's because it checks for the walls around it to change the hitbox after you place it, as placing one wall can let you pass around easily. If you place walls of a player and enemy force next to each other, it creates a gap you can walk past, but the moment it's placed, if there is another wall of the same force, it changes the hitbox to create a.. wall.