Unity Hanging when changing Main Camera Position or pressing Play

Hi, I’m new to Unity and doing the tutorials to get acquainted with the platform.

However, I’m running into a snag because unity completely hangs whenever I try to change any main camera attribute or press play.

If I build and run my project it works fine.

I’m currently using Unity 5.4.3.f1 Personal on OS X 10.9.5.

I’ve searched the forums but couldn’t find any solutions to my problem.

Maybe try to use an older version of Unity?