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Bug PB Object faces disappear if you subdivide an edge. Bug?

Discussion in 'World Building' started by dgoyette, Feb 4, 2021.

  1. dgoyette

    dgoyette

    Joined:
    Jul 1, 2016
    Posts:
    4,193
    I'm not sure if this is a bug, or just an inevitability, but it leads to a lot of lost faces for me. Here's a really simple example of what I'm seeing. (Note: This happens in PB4.5 or in PB5, so it's not a new regression or anything.)

    Start with a new PB cube, and subdivide one of the edges:

    upload_2021-2-4_12-21-4.png

    Now slide that selected vertex over so it's directly on top of one of the other verts, but (importantly), DO NOT weld the object's verts:

    upload_2021-2-4_12-21-41.png

    So now there are two verts at the same place. Select the top and edge again:

    upload_2021-2-4_12-22-59.png

    Now subdivide the edge again, and the top face will be deleted:

    upload_2021-2-4_12-28-38.png

    Doing the same thing in Blender, for example, doesn't result in any loss of faces, which makes me wonder if this is just a bug in PB, or something more complex?

    Note that subdividing that edge is just one way of reproducing this. The same thing occurs if I connect that edge to another edge, since it has the same effect of subdividing the edge.
     
  2. kaarrrllll

    kaarrrllll

    Unity Technologies

    Joined:
    Aug 24, 2017
    Posts:
    552
    That's strange, definitely not intended behavior. We will look into it.
     
    dgoyette likes this.