0
Not a bug
Missing Hab stairs shadow
The stairs leading up to the habitat door cast no shadow from the spotlight above the door during the night, while they do cast a shadow from sunlight during the day. (Can't quite remember if they cast a shadow from the EVA suit headlamp, but I'd say they do?)
Customer support service by UserEcho
This is a performance limitation. Shadows cast from spotlights cause more of a hit on performance. So for now I'm marking this as not a bug since it's intentional, but if I'm able to find a balance with the performance of the shadow casts then I may enable them in the future.