There are good news and bad news. Good one is that “is valid” fixed the error. Bad one is that I still cant get rid off ‘Get All Actors of Class’ (screenshot)
For the mouse wheel I couldn’t called existing “On mouse wheel” function. I got information “this function was not marked as blueprint callable…”. So what I did instead I’ve copied nesesery code and created new function that I can access. This technique worked with “on key down/up” function. And jeah I’ve made sure that function gets called.
I think that function receive the input but simply don’t know what to do with it. Technically nothing has change accept the fact I don’t need to specify if my mouse delta is 1 or -1.
