Variable doesn't have it's value when created

This is really weird bug - I created variable, set value to it, and in the game it shows zero!
Here is some screenshots of it:

289871-screenshot-4.jpg

289873-screenshot-5.jpg

the value will can ogly go from 0 to 1 try this

Suddenly, that helps, thank you! But, why this happens and why it fixes only at 1?

I’m glad i was able to help you.
I don’t know way it goes from 0 to 1, it can be that Float is readed in bytes, and bytes can only be 0 or 1, But I’m not sure

Looks like a bug in the editor. Is the class derived from another class?