Editor Script is not work when I delete assets.

Title is Everything I want to Know…

I made interchange pipeline by scripting in Python.
I use ‘UnrealImportRules’ plugin. → just add import rules(like setting properties)

I made some rules and put in startup script. When I open editor first time, Everything works very well. Import setting works perfect. But after I delete something(assets) it doesn’t work.

I can’t see any python logs and import setting sets default value.
I have no idea with this problem.