Node input and outputs error when reopening script - jsonData

[Marcel_Rijsmus]

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Dynamo 2.0 duplicates ports of custom node when file is saved and reopened?

When I use my custom nodes (external dll - works properly in 1.3 without issues) in Dynamo 2.0, save the dyn file and reopen it the ports seem to duplicate every time? [image] Did someone else have this problem, too? Any idea what could be wrong or different in 2.0? The code is pretty standard and looks like this: [IsDesignScriptCompatible] [NodeName(“Stream”)] [NodeDescription(“Stream node.”)] [NodeCategory(“XXX.Streams”)] [InPortNames(“Ss”,“I”,“N”)] [InPortTypes(“Stream [List]”,“Stri…