If you have a place with Atmosphere in the Lighting and you open it in Studio, visually, the atmosphere will not be displayed properly. This does not effect in-game visuals, just Studio.
To go around this, you must update Atmosphere in Lighting. Currently I cut and paste it to update it without changing any settings.
Are your Studio Graphics Settings set at max (21)?
This isn’t usually a problem since Studio isn’t really ‘running’ anything and normally runs at max graphics but may cause issues if you have a slower computer or internet speed.