Did you ever find a solution? I’ve tried a few possibilities that suggest modifying the tangents based on the length of the mesh used, but I’m still seeing the slight gaps.
For both the start and end: get the tangent at spline point, Normalize it and then multiply it by the distance between the start and end points (length of the mesh), then input that into the ‘Set Start and End’ node. You’ll see this example in the ‘Landmass’ plugin (SplineMeshChild BP).
