=( I did look at the tree and hit it with an axe. But like what you said, the circle fills around and suddenly my tree is gone. And I didn't get any stuff.
Are you hitting the frame around the tree? It shouldn't produce a circle, just a hitting effect and sound effect (and it will also give you items). If it shows the circle, you're doing it wrong. Try aim at the tree itself, not the surrounding area.
Ok I'll try again.