[BUG] All objects clip and have NO gravity

[roro152]

So when I started up US2, I noticed that all of the planets were flying away from the sun. At first I thought it was just a minor, one-time thing. also I was launching planets at the sun and they just flew right through it.... but I tried doing it with other things and the same problem.

Here are some screenshots I took:http://imgur.com/a/Fuhsp

[creeperz1211]

This was happening to me on the alpha 19 preview. I wanted to see tidal heating and roche limits but, orbits wouldn't work. I was really annoyed