Confirmed, same issue for me. TLDR: Patching not successful. Reinstall fixes issue. Below is full account, maybe most of it known issues. In my case, I updated/patched Win x64 0.23 to 0.90 using Launcher, noticed Rsync error in the patch report but didn't otherwise see errors and didn't save what I saw. Update button in Launcher was disabled after this patching, so I assumed it was ok. After updating, game would not load past ionEngine when starting via Launcher, same result when starting using KSP_64.exe. Game did successfully start when running KSP.exe, but weird stuff in game like duplicates (x2) in the parts list in the hangar. Obviously things were messed up. Downloaded the 0.90 Win x64 zip file. Uncompressed and ran Launcher. Update button was active so I clicked it. Patching completed with one error, some files/attrs were not transferred, rename output_log.txt: device or resource busy. Started game with Launcher, game loaded successfully. Started Career Mode, all buildings came in fully upgraded. Everything else looks right at a glance (no more duplicate parts). Adjusting volume settings also reduced window resolution. Downloaded the 0.90 Win x32 zip file. Uncompressed and ran launcher. Update button disabled so launched game. Started career mode, buildings are not upgraded, everything else looks right at a glance. Again, adjusting volume also reduced window resolution.
