Is there some specific frame in the animation to see the problem clearly ? The path is very long...
By the way: in the wooden generator set "Rules->Corner->Vertex type" to other type than "All" (i.e. Corner or Bezier-Corner). If not, the Corner rule breaks the paths in sections at each vertex, creating strange gaps between the evenly segments. Also i suggest to turn off "Evenly->Justify" (it has no sense here).