I created a simple "substring" formula that takes in a String and returns a String.
As you can see in the screenshot, the "output" node in the formula tree successfully displays "Wed" (shortened from "Wednesday").
However, the text layer displays "null" instead of the output content.
Is this a bug/KI?
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Also I struggled for a few hours because I assumed the input would be a string, especially because I specify the input argument as "string" in the left panel. But I had to actaully convert the object into a string, which I thought was very confusing — was this intentional?
@lululucaschae
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