hi,
I wanted to see how I can fix this level issue with negative in Dynamo. as I am working with a big range project of tunnel with negative value for the elevation level.
Hi,
It looks like the problem is nested lists. The List.GetItemAtIndex is not happy about the index you are feeding it. My guess is that you should start from index 0 until 2 because the list you are feeding it contains 3 lists.
Hopefully that helps.