在Unity中使用Spine动画时，如果骨骼在运行时未能正确跟随，可能是由于骨骼的Transform或约束设置不正确。确保在Spine项目中正确设置了骨骼的约束，并在Unity中使用正确的组件来管理骨骼的跟随行为。

1. 确保在Spine中设置了正确的约束，并在导出时包含这些设置。
2. 在Unity中，检查使用的Skeleton组件（如SkeletonAnimation或SkeletonMecanim）的设置，确保启用了正确的选项。
3. 如果使用了BoneFollower或其他类似组件，确保它们被正确配置以跟随目标对象。
4. 检查是否有其他动画或脚本在运行时覆盖了骨骼的位置或约束设置。

如果问题仍然存在，可能需要在运行时手动调整骨骼的设置，或者检查是否有其他脚本干扰了骨骼的行为。

@1542784313 With such minimal information it's very hard to help. Please always describe at least what components you're using, and what your Unity hierarchy looks like. My guess is that you're using an isolated UtilityBone instead of the correct hierarchy. If so, see the documentation.

@1542784313 Unfortunately machine translation still resulted in very unclear text. Also we don't see any screenshot of your hierarchy window in Unity.

Please describe what you want to achieve in the first place, don't describe your attempted solution as it may be wrong, see the xy problem. Also add screenshots where possible to show the results you get and what you would like to get instead.

Thanks For the video, this looks indeed very strange. Did you modify the hierarchy of the bone GameObjects in the Unity hierarchy? It looks wrong that weapon is right below root, is that the case in your Spine skeleton as well?

Which version of the Spine Editor are you using?
Which exact version of the spine-unity runtime (name of the unitypackage, also listed in Assets/Spine/version.txt or in the Package Manager window)?

@1542784313 Thanks for the info. Please note that 3.8 is already several years old and does not receive bugfixes any more. Also there have been many bugfixes in the meantime from 4.0 to 4.2. Does this issue also happen when re-exporting your skeleton as version 4.2 from Spine Editor version 4.2 and importing it in spine-unity runtime version 4.2?

You didn't answer my other question:

Harald Did you modify the hierarchy of the bone GameObjects in the Unity hierarchy? It looks wrong that weapon is right below root, is that the case in your Spine skeleton as well?

Ok, thanks for the info. Then this might be a bug or a bad combination of components in 3.8. Anyway, if you only need following, you should use the BoneFollower component instead.