Print fix blueprints bugs?

I’d like to know if someone have experienced this as well as it seems to happen quite often to me.

Sometimes my blueprints just won’t work when theoretically they should, and then I simply add in a ‘‘print’’ node to debug and it magically starts working fine, am I crazy?

Well , unreal still have some bugs here and there :slight_smile:
I am not sure if this is one

Try detect the bug with a sequence of action that all can reproduce!
And try hitting the save button to your blueprint before hit play