0
Not a bug
Held items don't receive sun shadows
When equipped outdoors, the datapad and the pickaxe doesn't receive sun shadows from environment objects such as the hab, the PRT or the hab systems (likely also not from larger rock formations), while they do receive a shadow from the otherwise invisible player model.
Customer support service by UserEcho
This is a limitation of the FPS camera system. The equipped models visible to the player camera are not technically in the same game world as the other terrain and equipment models. They are rendered by two separate cameras layered on top of each other.