I'm doing this tutorial:
https://www.youtube.com/watch?time_continue=307&v=WxMwa0njGSM
and by 5:11 min you can see, that the guy makes a cylinder to cut a part out from the anvil. I understand how to use boolean. I have to choose the anvil, then add boolean modifier and pick the cylinder object to make the move. I did everything just the same way as the guy, but as you can see on the attached picture my cylinder doesn't affect the anvil as on the tutorial. When I change the viewport to wireframe it seems good, but when I apply the modifier and I change the viewport again to solid, it's a full anvil again. I tried the method on an other layer with a square and an uv sphere and its works fine. When I copy the anvil to the other layer the problem is the same again. I tied to relaunch blender but nothing.
My blender version: v2.79


