hey -
I want to confirm if it is intentional that you created a class based on actor and then changed it to inherit from UInterface? I’m also not sure how you’re adding the class to the level after your changes since after the changes the class is an interface rather than an actor which cannot be placed in the level.
If you are trying to use an interface in code, it may help to the tutorial for interfaces that was created by another community member:
Cheers