运行LsHNE 结果无法理解

执行 python -m tf_euler --data_dir ppi --max_id 56944 --model lshne --mode train

结果如下

问题一： topological sort failed with message
问题二： loss一直没变，没有得到训练

能否给予解答呢？谢谢

Start by rerunning `python -m tf_euler --data_dir ppi --max_id 56944 --model lshne --mode train` and capture the complete output around the “topological sort failed” message. Trace the LSHNE training entry point and determine whether the unchanged loss is expected or indicates a failure; done means both reported behaviors are explained or reproduced with a clear fix path.

Written by the indexing model from the issue text.