After further testing, I found that at least the following were not true, as far as I could tell:
① 若骨架名称包含中文，则 SpineSprite 节点的 skeleton_data_res 属性被指定该 skeleton data 时，整个 Godot IDE 都会崩溃
The important cause is apparently the inclusion of Chinese in the animation names, and it does not matter if Chinese is used in the skeleton bone names, slot names, or image file names used for attachments.
In my previous reply I said that the results were different between those using the GDExtension and our spine-godot custom build, but it seems that this is just because the updated skeleton data was not loaded properly within Godot, and the results were the same in both cases. I created an issue ticket to fix this:
EsotericSoftware/spine-runtimes2788
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