wkcn edited a comment on issue #13748: custom loss cause "kernel died" in Jupyter notebook URL: https://github.com/apache/incubator-mxnet/issues/13748#issuecomment-450613242 Could you please print the shape of inputs and outputs when backward? It may be shape unmatched. And it seems wrong that out_data[0] - in_data[1] in the backward of SoftmaxCrossEntropy?
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