Hey all,
By default the Third Person Character Blueprint will have this option enabled. In case you accidentally disable it, make sure you have selected the ‘Camera Boom’ component. Then within the details panel you can select ‘Do Collision Test’.
Camera Boom Collision Test
As the tooltip suggests, this will prevent your camera from clipping into the level. Let me know if you have further questions. If the image appears too small, you can right click and open in a new window or tab to see the original full size.
Cheers,