Writing a Material to a Render Target?

I’m trying to write a dynamic (video from Spout node) material to a Render Target at runtime using Draw Material to Render Target. New to UE4, so I’m prob just missing something in my logic, or a missing a checkbox. Here’s the BP:

Can anyone advise? Thx so much for the help!

You forgot to set the texture render target

If that is not it then I do not know what it is

It could be a C++ only feature