How to deal with "No Value Observed" pins in VL?

My main question is this, how to deal with the output pins from methods where “no value observed” . IsAssigned or NULL (custom exception) dont work, since there is no value to compare, so is there any thing that will prevent this and fallback to a default value ?

“No value observed” means that this part of the patch was not yet executed in the time you hovered with the mouse over it. The system didn’t see a value to report yet. So you need to make sure that particular patch (or part of it) actually gets called from one of your entry points (= VL nodes placed in vvvv beta).

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