PointAtParameter Node Issue

 Playing with Dynamo I tried to make a list of pints in an isoline of a surface. I followed the steps of the video tutorial called Unit 2: Family By Point - Part 1 (https://www.youtube.com/watch?v=gBf6RJKIvS8), in Dynamo BIM (http://dynamobim.com/). When I finished it, my scheme didn't work.

I saw what was the output pf my node Code Block and the node GetIsoline. I noticed that it was a list of a list, instead the input param of the PointAtParameter node must be a list of values.

This error depends on the change of node GetIsoline of the latest version of Dynamo. In fact, if we compare the new and the old node GetIsoline we will see that the output is different:the new onw generates a list of curves, instead the old one only generates a curve.

So, to run the scheme, I used the node FirstItem allowing you to get the first item of the list, and we obtain a list of valuse by the node Code Block. I also imposed the Lacing of PointAtParameter node as Longest.

NOW IT WORKS!!! :))

Thanks to Cristiano Piagnerelli and Vincenzo Panasiti for their help.