So I found out another thing, and its that if I enter the Astronaut Complex AT ALL and leave, it will do the same thing. To be more specific, if I enter in the Astronaut Complex (this time I don't do anything) and leave, then go into the VAB (didn't try the other buildings,) fly a craft, then revert back into the VAB, and that will cause me to not be able to leave it. Then I can force close KSP then relaunch the save to be in the "floating in space and not being able to do anything state". I removed the mod again, and tried to do stuff but the bug is still there. I think its just my save since I changed mod versions.