image edit训练数据格式

请问在进行图像编辑任务的训练，是不是要求parquet中，每个训练样本的image和intruction list长度一样？我在自定义数据上进行训练，长度不一样时会出现数据读取失败的报错。
`Error index 2 is out of bounds for axis 0 with size 1 in rg#0,`

Start by reproducing the image-edit training failure with custom parquet data where the image and instruction lists have different lengths. Trace the data-reading path that produces the reported index-out-of-bounds error, then verify the expected sample format and confirm that valid inputs load successfully.

Written by the indexing model from the issue text.