I've been trying to reference a null in the flip object but it doesn't work (i.e the flip solver doesn't show anything) Here's my issue - https://imgur.com/a/vXUpqyR .
What could I be doing wrong?
It comes from following this section of the tutorial - https://vimeo.com/173335049#t=9m37s [vimeo.com]
He's using Houdini 15..is that why its not working for me?