Why won't anything in my scene rotate when I press"r", or "r" "r", or go to the rotation tool and click it? Look at the image below please! It's weird. When I press r or rr on the keyboard or drag the rotation tool it doesn't rotate. The rotation you can see is not locked! This bone wouldn't rotate, or any other bones. It was fbx imported, but I've imported it before and it didn't work. Nothing will rotate in the scene.
In the header where you can choose visualization mode(Rendered/Wireframe/Solid...) you have a button with "..." and two arrows below, that mode is causing the problem.