Weaverbird LC stopped working

Hi guys,

I'm using Rhino 5.2, Grasshopper 0.9, Weaverbird 0.9.0.1. I managed to set Weaverbird Laplacian Smoothing to work properly (at first there were some errors), after that I saved and closed the file. When I reopened it, the effect of Weaverbird LC was missing on the model, but there was no error showing in the component. Any ideas why that might have happened and how to fix it? Some other weaverbird components are working fine.