spout DirectX/OpenGL interop error (conflicting graphics cards)

Hi,

I'm working on a project that requires me to use Jitter->Spout->MadMapper. MM gives me a “Cannot create DirectX/OpenGL interop” error. I am also posting this to the Spout forums. However, going from TD->Spout->MadMapper works easily, which maybe means the Jitter Spout objects may be a problem. If anyone has experience with this, I'd love some information on how to proceed, because I'd really love to use Jitter for this.

The computer:

Intel(R) UHD Graphics 630 (built in to motherboard I think)
NVIDIA GeForce GTX 1070 with Max-Q Design

I don't expect anyone to give me information about MadMapper, as this is C74's forum, but perhaps I can glean some information about what the spout sender object does under the hood.

Spout has a message on their website: "For compatible graphics hardware, OpenGL textures are shared by way of DirectX using the NVIDIA DirectX/Opengl interop extension. If hardware is not compatible, SPOUT provides a backup by way of CPU memory." This sounds absolutely preposterous. Using CPU memory must be 1000x slower for OpenGL texture sharing...

Thanks!