Haven’t been able to identify the exact source of this bug or reproduce it when wanted but it is game breaking either way (was also present in the original Xbox release). After an extended period of time playing (varies between as short as 15 minutes to as long as an hour or two) the game can no longer be saved and clicking on either the Tracking Station or Space Centre doesn’t work. Vessels cannot be recovered or switched to. This often results in hours of work being lost. Can’t completely confirm that this is tied to the bug but it seems to occur shortly after an autosave. Wanted to test the auto save relationship with the bug but there is no option to turn off autosave. Just. Why? Best work around I’ve managed to find is saving the game after EVERY manoeuvre but this still doesn’t always work but does ensure not as much progress is lost each time the bug kicks in.