It MIGHT have something to do with the fact that I use a laptop and so have a two button configuration, but that shouldn't cause problems.
Actually, you know what, its not what I thought I was, but it's a similar set of actions, I'll give the step by step though
1. Start up US (Steam version in this case for the updates)
2. click new
3. click the paused option
4. Open the options panel
5. click accurate mode (as opposed to Euler, which it defaults to)
5a. (optional) Doubt it makes a difference, but I press H and Q just because I like it set that way.
6. Leave the timestep on one minute (if it isn't already)
7. click add tool
8. click the planets icon and click earth (doesn't matter which object)
9. place earth
9a. (optional) I unpaused and then paused for a second to get the projected paths to show, that might be a slight bug in itself, but has no relation to the origional complaint.
10. click makemake
11. place wherever
12. right click to clear the cursor
13. click normal tool (might not matter, but you want to have the step by step)
14. UNpause
15. click both the left and right mouse keys at the same time in some random spot. A note on this, I use a touchpad with two mouse buttons, so I don't know what exactly you will need to do with a normal mouse, click both the left and right buttons at the same time, just the middle mouse button (or scrollwheel for some mice), or even all three.
16. Stare at interdimensional blankness. (Just injecting some humor in here)
Earlier, I thought it had to do with the planets themselves, but it appears that it's a case of me doing the same action for something unrelated.