Game mode: [Online]
There appears to be a maximum distant of 3 to 4 tiles you can place a platform (ceiling) from a foundation and build walls and fences on their edges, however this does not seem to work for sloped walls, (right left and inverted of both seem to fail. Considering that full walls and fences connect as they should to the all platform edges as long as they are placed, I assume this is a bug.
As it stands I often have to use a full wall instead of the half sloped wall making the design pretty unpleasant and not what it should be.
Steps on how to reproduce issue:
1.Place a foundation
2.Attach the maximum of 3 to 4 platforms to extend from the top of the foundation
3.Attempt to place a sloped wall on all edges of the furthest platform, or a wall and sloped on top of that wall
This will work with full walls, but not sloped