Not a real major bug since a save and reload cleans them up, but I've noticed that when I delete an object and sometimes when I'm focused on an object and it collides with another object, it can generate an absolute space 'object' which does show up when you turn on highlights, but is uninteractable. Other than being able to focus on it and land on it.
It can be annoying when you're deleting alot of objects or there are lots of collisions.
Edit: Also, when I press the x and + buttons on the find box multiple times, it will create absolute space points and sometimes generate an error when I do that.