Well, I had posted a topic about creating a reliable double jump system in sandbox 2 with flowgraphs, and all the graphs that myself and other generous people had put together seemed to be buggy in one way or another.

I recently found a simple, face palming solution.

So, here. Have a double jump flowgraph. On the house.

Sorry for the necrobump, just wanted to thank the OP for his generous offer.

this is not working for me

Bad flowgraph...

i agree, it doesn't need half the nodes

You just need the Key,Action Impulse,LocalPlayer and Sound nodes,in my opinion..I didn't try but I think it would work.