Cannot ActiveRedirect classes

I have found that if you have a class used by a blueprint and then you want to rename that class, you should redirect via config files in order not to get errors in blueprint. However, the solution mentioned has no effect why?

Config File: DefaultEngine.ini

Lines Added:

[/Script/Engine.Engine]
+ActiveClassRedirects=(OldClassName=”USpellCasterComponent”,NewClassName=”USpellLibraryComponent”)