Shadertoy import textures not working

[F1ENDish]

I'm a VJ and discovered ISF Editor and love it. I'm using it to output to Spout and bring the signal into Resolume on Windows.

I've been messing around with importing stuff from Shadertoy, but the textures don't seem to map properly. They download to the ISF folder, but aren't applied correctly, if at all.

e.g. https://www.shadertoy.com/view/MsVfz1 or https://www.shadertoy.com/view/Msl3Rr or https://www.shadertoy.com/view/4ttGDH