In a trained node_vector file, why does the dim of the last node vector get shorter?

[fiego]

According to the code and instructions provided by you, I can run the program normally, but there is a problem:
In a trained node_vector file, why does the dim of the last node vector get shorter?
In the output node _vector file, the generated node (the last node) has an inconsistent vector dimension.

I don't have any documentation in the code that says what this node means for vectors, so I want to know what's wrong with it.
I now remove the last line in the vector file and the result is fine, but that's not a good way to solve the problem.
Please pay attention to this problem.