When useing the build block, such as on a space station, if you click of your screen to do something such as type in skype or look at a webpage. when you click BACK on the screen it brings you back to the build block as if you had left build mode. but appears as if you are still in build mode. you also cannont move but can look around with the camera. to fix it you have to leave build mode with R then re-enter the build block. it dose it consinstantly every time you click off the screen. also, rarely this casuses a seperate bug. the seperate bug causes your camera to lock as well but when you press R to leave build mode to fix the bug. your player leave the build block but your camera dose not follow him. meaning you can move your player all over the place and watch him but our camera stays in one place. if you need anymore information to recreate this bug please post below.