So just from browsing I've noticed I'm not the only one with this problem. Basically what's happening is I've recently re-installed KSP a vanilla version of KSP. I'm in early Career and I've only just unlocked the space plane components. So when I head to the SPH and create a vehicle, I press Save, and then try to Launch. Just then, the UI grays itself out, the buttons become useless, and I can't bring up the menu or exit to the main Complex. If I quit the game, and start over, the vehicle isn't even available when I try to load it. (There's simply nothing, as if I never created a craft in the first place). This is evident in the .craft files as well, seeing as it's not even there. This is important for me, especially early in Career mode, because the plane helps gather a lot of science around Kerbin. I've verified the game cache and upon reaching 100% it gives me a message saying something about one file being unverifiable and will be "reacquired". I don't know what this means, I've never seen this message whilst verifying the game cache. I'm running KSP v1.0.2 through Steam on 64-bit Windows. Here's a link to a Dropbox folder with the output.txt, a screenshot, a .craft file (It's from the VAB but I thought maybe it wouldn't hurt to include), my saved game and a dxdiag.txt with my system specs. https://www.dropbox.com/sh/u5lvcfbcn7kjlmg/AACNPnOpOQl3xUB2Qrh0mvQ3a?dl=0 I hope this is sufficient information at least to get started on this problem because it's evident on these forums and reddit (so basically, all of the internet), that a lot of people are having this problem. My most current install is probably the third time and the third new save file I've created because bugs have made the game unplayable. I'm trying not to complain, but it's pretty frustrating considering I've never experienced the mid to end-game KSP gameplay because game breaking bugs. Thanks for any help or advice that you fine gentlemen or ladies may be able to provide me with. Good day!