在进行Loss Analysis的时候总是卡在第一个数据

### Details

我在之前的数据集可以正常运行，但是在新的数据集上运行的时候总是卡在第一个数据集，长时间无法进而第二个数据err analysis的分析，麻烦老师了

Start at the Loss Analysis entry point and reproduce the hang with the new dataset, comparing it with the earlier dataset that works. Capture the processing state or logs for the first data item and verify that analysis advances to the second item; the issue is done when the new dataset completes Loss Analysis without remaining stuck.

Written by the indexing model from the issue text.