Mesh tracing and polygonal texture packing both deal with a lot of geometry. Recently polygonal texture packing needed some functionality that mesh tracing was already doing, so it was moved to a place where both could use it. After the move, using it requires copying vertices to a buffer but the mesh tracing was not clearing the buffer first, so every time it performed an operation it added all the vertices again. This admittedly makes for a neat pattern, but isn't terribly useful as a mesh! :nerd: