Starting from engine 4.3.1 mouse and keyboard controlls are different for unreald editor. I got used to zoom in/out on scroll inside blueprints, now in version 4.3.1 and 4.4.0 thats up/down.
Is there a way to revert settings to be just like they were in 4.2.1?
Currently there is no way to revert to old behavior. Scrolling now pans view and to zoom you have to press right mouse button and move mouse. We added gestures support for trackpad and Mighty Mouse that should make using editor easier. I’m going to enter a feature request for our developers to consider some settings to customize gestures usage in editor. Thanks for feedback!