tensorflow / tensorflow/tensorflow
`Check failed` in `tf.raw_ops.UnbatchGrad` when the input of `original_input` is empty.
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@Kayyuri is already working on this.
Since Jun 3, 2026.
comp:ops
stat:contribution welcome
TF 2.16
type:bug
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Description
Issue type
Bug
Have you reproduced the bug with TensorFlow Nightly?
Yes
Source
binary
TensorFlow version
tf 2.15
Custom code
No
OS platform and distribution
Linux Ubuntu 20.04
Mobile device
No response
Python version
3.10
Bazel version
No response
GCC/compiler version
No response
CUDA/cuDNN version
No response
GPU model and memory
No response
Current behavior?
When the input of original_input is empty, tf.raw_ops.UnbatchGrad will trigger Check failed of the input tensor dimension.
Standalone code to reproduce the issue
https://colab.research.google.com/drive/1ekseH5mJBvt3_SeK4MuAAM47U8qi5BEB?usp=sharing
Relevant log output
Check failed: d < dims() (0 vs. 0)
Aborted (core dumped)
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Assessment
This issue has not been assessed yet.