I did 5 AreaTarget scans and i ended up creating 5 databases, each with 1 Area Target.
Question 1 - Whats the difference between Database and AreaTarget and is there a best practice?
Question 2 - After importing my 5th scan, i.e 5th database, I realize i had some area targets visually disappear from my Scene view. You can see the screenshots attached. I basically have 3 scenes, where 2 scenes contain 2 AreaTargets each. 1 Scene contains 1 area target. In the 2 scenes where i had 2 AreaTargets each, each scene had 1 AreaTarget disappear from Scene View. They still exist in the Scene Hierarchy and the inspector settings seem like they are normal / populated. Its just visually not there in scene view.
The attached screenshot shows one such scene where I actually am meant to have 2 AreaTargets, the orange mesh represents the manually created NavMesh area covering both AreaTargets. You can see one AreaTarget is missing.