I was doing a patrol in the Rotor Nebula to gather medical supplies on the planet, and all of my bridge officers beamed down about 20 meters away, inside of a rock! Trying to set waypoints for them didn't work either, they just keep leashing back to the rock location.
This has been a bug since the start of S3. The Boffs/mobs would beam into a rock or building (especially in rocky terrain) and either fall so far into the map they die, or just sit there. The worst is when you are walking/running/fighting, and the mobs can shoot you, but you can't hit back, or the Boffs will slowly disappear.