Most of the time when im playing by myself or with friends i use admin fast travel and we get spawned in the air, One of us will drop then get respawned in the air about 5-6 times. If were lucky we get spawned on the ground after that or i have to spawn us somewhere else and hope we stay on the ground. Its at random spots sometimes it works and others we get stuck in the air.
Welcome to our community.
This spawning in the air you mention, does it happen exactly when you teleport? If you wait a few seconds, does it send you all to the ground again, or do you experience the whole falling animation and take damage?