List.IsNotEmpty fails

Greeting. I have a list of boolean which is input to List.Filter.

First problem I encountered is List.IsNotEmpty come out as Null. And it made ListFilter fails.

As I guess the reason come from the null data, I tried to replace the Null by EmptyList.

Second problem I encountered is the List.NullToEmpty fails by telling me Value cannot be null.

I have no idea why these happened.

@TCKEAHY See if this works:


@AmolShah Thanks for your node provided. It works for me.

As I don’t need “Not”, I skip it in my script as below:

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