When I render the flipbook as part of the tutorial, I get the "Indie Edition" watermark. Is there a way to remove the watermark when rendering a flipbook? Otherwise, the smoke particles show the watermark in Unreal - not really a very useful tool.

Thanks in advance.

Thanks for reporting this. The explanation and official fix are posted in this thread [www.sidefx.com].

You need to go to the node's Interface tab and set Viewport Padding and Padding Direction (to the right of Viewport Padding).