Cedar Architect provides an option called ‘Collisions’. When active, it recognizes surfaces that the object will collide with. Objects will rotate to align with walls making furniture and cabinet layout easier.
This can sometimes keep objects from rotating. If you are trying to rotate a bed, and the bed will hit the wall as it rotates, the collision option will keep it from rotating.
Simply uncheck collisions and adjust the furniture position as needed.
Note: You will find many cases for keeping this option enabled and also find times to turn it off. Check or uncheck it as needed.