Actors keep placing below landscape

Beginner question- when placing actors, they seem to snap down to an XY grid that just appeared. I can’t move them or really see them unless the camera goes underneath the landscape. The actors are in the level, but I can’t move or manipulate them. Didn’t happen until I worked on a static mesh from Maya. Not sure if it’s actually what caused the issue or not. “Enable Actor Snapping” is off.