Font OnGUI issue

So, hard to explain that. Basic issue is font material. Text appears after a button click. Same happens in each scene. Build only, everything’s fine in editor. That’s probably gradle build issue? I have unity 2018.1.4 and NDK 13.
Correct, Unity 2018.1.4, last version with UnityJava.

customStyle.font = (Font)Resources.Load(“customFont”, typeof(Font)); // run in Start()

And all custom fonts should reside inside Resources folder.