Yes, my julia version is 1.11.2, and my NeuralPDE version is 5.17.0, so I don’t think versions should be the issue.
One thing I wasn’t sure how to handle is sending the parameters from both NNs (ps1 and ps2) to NNODE, because I only saw examples online using a single NN. So I entered [ps1,ps2] but am not sure that’s the right thing to do.