Editor crash on launch if i disable custom plugin

I’m trying to develop a plugin with different usefull features, that will help me, and probably someone else, to speed up development process.
The first thing i’m trying to implement, is the custom Option in Context menu inside graph editor.
I found one way to implement this by adding custom GraphPanelNodeFactory, that will handle Node creatintion, where i can add my own GraphSchema. I was able to add a custom menu, but yet faild to bind custom action to it. But that is not the problem i want to solve now)

Problem:
If i will disable my plugin, editor will fall on launch, saying that while creating nodes, node Schema was nullptr

Question is:
Is there any known way how to fix it?
So if i disable my plugin, editor would not crash

Feel free to ask for more info

First, remove all dependencies then remove it. maybe you use that plugin on a blueprint

There are no dependencies inside project. Its kind of editor modifying module
The thing is, that this plugin is modifieng blueprints from inside. It seems like it serialize that schema (probably its name) when creating nodes, and than try to find it again. But as plugin is off, he faild