Solved by fllci in post #6 
              
              
                Alright. Solved it. For anyone following the WGAN from Aladdin Persson on YouTube, he does the WGAN for images and obviously he adds the results on tensorboard using writer.add_image(). But my data is 1D. That’s why I was getting this weird error. I needed to change that to writer.add_scalar(). For …