After Index all blueprints 2 remain unindexed

I got a message saying 62 blueprints are not indexed. After pressing “index all” it still says 2 blueprints are not indexed no matter how ofen i redo it. I could not find an answer to this in google.

Do I have to worry or ist this error not importan for the game?
My game is recently randomly chrashing from time to time and I am looking for the reason. Could this be a reason?

Have you tried fixing redirectors? This may help.

In the content browser, right click content → Fix redirectors…

Worked like a charm Thank you!