So I was out hunting on the Abberation map and had my ravager with me. Fearing death I crafted an altar and uploaded the ravager into it. After dying I managed to get back to base and pulled it down again fine.

Another player joined the server and the tribe and pulled 3 level 300+ ravagers across with him. So the altar worked then as well.

Went out with a clanmate I tamed and uploaded a Direbear, but when trying to pull it down at my base I can't as it greyed out, I can upload fine still.

Everyone in this server is in the same clan, any ideas?