[GitHub] [incubator-mxnet] RuRo commented on issue #9712: two consecutive backward cause error Check failed: type_ != nullptr The any container is empty requested

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RuRo commented on issue #9712: two consecutive backward cause error Check failed: type_ != nullptr The any container is empty requested
URL: https://github.com/apache/incubator-mxnet/issues/9712#issuecomment-476291190
 
 
   Can confirm,
   ```python
   for loss in losses:
       loss.backward()
   ```
   fails for me with similar error, while
   ```python
   autograd.backward(losses)
   ```
   works like a charm.

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