I used the filter compute_mls_projection_apss in Pymeshlab to project a subdiv version of a mesh onto its original raw mesh. If I perform this operation on Meshlab (Filter –> Point Set –> MLS projection (APSS), option: filter scale = 1), it works fine. But when performing the same operation on Pymeshlab version, the result has a lot of spike artifacts. What are the causes of this problem and how can I fix it ? Or if you know other available implementations of MLS projection, please let me know. Thank you in advance !