I already know that the custom loss is changing, as I am watching the three losses.
This is a GAN model, which is highly unstable. Hence, I am still not sure if the custom loss is changing due to the other two losses, as they are taking part in the backpropagation.
Another way around this, but still not sure about it, is to set the other two losses to zero, and see if the custom loss changes.
What do you think about this approach?