When saving a project, no changes are saved in the libraries. Is it a bug?(solved)

[Cesar-S]

Environment

• Scope: desktop IDE
• Version: 0.30.1
• OS: Windows 10

Steps to reproduce

Modify a library node and save the project. Close XOD.

Expected behavior

When you open XOD, you can see that the changes were saved in the library.

Actual behavior

The library continues with the error and the changes have not been saved.

Conclusion: before it corrects the libraries without having to open one by one.
Maybe it's an intentional change or maybe there's a bug.
The current advantage could be that the library is not modified by mistake.

[Cesar-S]

Try to load the library to edit it, I mark some errors and when reloading the library disappeared completely, xod the ah removed.

[Cesar-S]

I close because there is an error in a particular library, and I can not find it.

ps: In the end I found the error, the node was duplicated and inside a folder of another node, maybe I copied it without realizing it.
That node was reset upon restart.