# studio-coincident-endpoints

> Two neighbouring wall points, or a joint's or crossing's two ends, are the same.

| | |
| --- | --- |
| Kind | Studio problem |
| Reported by | Studio validation: the Problems panel, Play, Publish and the MCP `validate` tool |
| Code in the Studio | `coincident-endpoints` |

The engine refuses an edge between a wall point and the same place, a joint between a body and itself, and a crossing of zero length.

## Fix

- Move one of the points, or pick two different ends.

## See also

- [Problems and validation](/studio/playtesting)