list index out of range，Using xy input: the model is having problems, is it being used incorrectly?

[DELSAO6]

我看了官方相关节点用法的视频和图片，不明白，如果是用错了，那如何做？I've watched the official videos and pictures about the usage of the nodes in question and don't understand how to do it if it's being used incorrectly.

[yolain]

Maybe it's a bug caused by a previous change to xyplot lora, I'm working on it.