I found a bug. I have installed USI LS 1.4.0 on KSC 1.11 version. I loaded an old save with a ship in orbit, which has a Mk1-3 cockpit with one pilot. Created an unmanned ship to deliver various resources and habitats. Launched the drone, approached the ship. I saw that the ship has the effect that all RCSs work at once (gas jets fly out), but they do not work, and monofuel is not wasted. At the same time, it is impossible to go to the KSC, to the main menu, or switch to another distant ship, the switch buttons simply do not work. Also, I cannot save the game. I had to turn off the game using the task manager.