Here are the structural trees of the same model in versions 2023 and 2024. It can be seen that many nodes in the first image (2024 version) are empty, while in version 2023, these nodes are named.
We found through testing that the getNodeName method returns a null value for the same node of the same model in version 2024, while in version 2023, the node name can be obtained normally.
At present, this situation has occurred in multiple models. Please take a look at the reason.