As GarnerP57 said; there’s a good read in the forums about the issue and it’s nicely summarised in this [post][1].
From my personal experience, the Select node evaluates everything - never trust it. Feeding it a null reference will always throw an error.
So I’d rather use IsValid? node to
first, with the execution wire, and
then check for the enum if the result
was valid.
Saves a click or two every now and then:
