I developed a Custom Node to Shuffle list of List Individually. However for reasons I can not see It will only function in Dynamo Studio of Dynamo Sandbox. When Run with Revit it only returns “Null” values.
Attached is a screen shot of two sessions of Dynamo (One revit, One Sandbox) of the same graph. After this I also removed all “Addins” from the Revit addin folder (except dynamo) and re started. No change.
Its most likely caused by a namespace clash between DesignScript and an external library. Unfortunately, fully-qualifying the class in DS doesn’t solve the problem. Instead, try un-installing your packages and it should work as expected:
Don’t know if this is related to your problem or not, but I had an issue with the latest build of Archi-lab with Dynamo 1.3.0
Had to back off to an earlier build of Archi-lab.
See here for more detail: