I'm experiencing a couple of issues with SG bases:
1. When I load into the SG base my character spawns with half its body in the floor, right around the torso and I can't move at all through the base. I'm stuck at the portal inside the base with half my body sticking up through the floor
2. When I load the base build - which I can do even though I'm stuck in the floor - the game immediately crashes.
Please have a look at this issue for a fix. It's been happening consistently these past two months.