How to create a "mini skybox" or sphere that surrounds the camera and acts like a skybox?

Hello, I need to create a sphere that shows the inside of a room in 360 degrees that the camera can look around in. To generate the 360 degree view, I have a cubemap (6 images) and made a skybox material. When I apply the material to the sphere, it looks good in the editor.
However, the camera does not see this sphere, from the inside nor the outside. Are there any solutions for this problem? Any help would be appreciated. Thank you!

 

Remove default Skybox material from lighting tab (or set Camera clear flags to Solid color)

 

It worked after I removed the skybox material from lighting. Thank you again mgear!