Importing TypeTree breaks MonoBehaviour

[Thesola10]

This issue occurs in asset files for Yurucamp: Have a nice day. Unsure if it may affect other games using Unity 2020.x format.

Code

env = UnityPy.load("title.unity3d")
env.objects[1].save_typetree(json.load(open("1.json")))
env.save()

Bug
The resulting asset file works in the game, but MonoBehaviours modified using save_typetree() will be broken. (e.g. if it is a text asset, its text won't show up anymore)

To Reproduce

• a copy of the file that causes the problem (original file is copyrighted and not mine, but can be retrieved following instructions here)
• following data:
  • Python version 3.9.7
  • UnityPy version 1.7.24

[Thesola10]

Ended up being an error on my part, was using broken JSON dump of the TypeTree.