View.ConvertTemporaryHideIoslateToPermanent node not working

So I have a project with about 225 houses, and I have a 3d view for each house. I used a dynamo script to create those 3d views, and the dynamo script temporarily hid elements in order to isolate. I’m trying to use this simple little script to convert temporarily hidden elements to permanently hidden elements, but it is just returning null. The input on the node is a Var so it should be able to take a list of inputs right?

Any help is appreciated.

Thanks.