I have run into 2 bugs, and I am not sure if they are related or not so i'll report them together. The first issue is that when I sent out a tug to tractor a space station to another body, it was traveling at only 2km/s (this makes sense, I didn't think to add much larger engines) however, once I detached the tug and it was on its own once again, it still only traveled at 2km/s. Thinking that this was an issue on my part with maintenance or something, I constructed a fresh tug and sent it out, causing the same thing to happen. The second issue that I ran into is with missiles, where I designed and researched 2 different missile designs and was able to see them, I then saved my game, waited for it to finish saving, and then closed it. When I launched the game later, the missiles were no longer visible. I did verify that other research that I had done between the last two saves was correctly up to date, meaning that the last save didn't completely fail. I then decided to design and research the missiles again, and was not able to see them after the research finished.