KSP Version: v1.0.2.842 Windows 62-bit History: One day i could not get in to KSP, the system got stuck after loading data and mods, would not start even after 10 minutes. (I had one mod installed at that time, MechJeb2-2.5.0.0, but this do not seem to be the issue) I have this version saved if any logfiles are of interest What Happens: After my issues in History i did the following Downloaded the latest version of KSP - test started, seams to work Copied my old saved data to the new installation Now i can start KSP without issues (all progress seams to be there) Go to assembly building or hangar Cant select new parts to create anything, and if opening old craft impossible to change them Mods / Add-Ons: All Stock in this re-install (see history) Steps to Replicate: 1. Re-install 2. Copy in my old save files 3. Start KSP and open old carrier 4. Go to assembly building 5. Try to create or edit ship Result: impossible to create or edit ships Fixes/Workarounds: Have not been able to find any workaround Other Notes/Pictures/Log Files: System data, out putlog and savefiles on dropbox https://www.dropbox.com/sh/30lplr0o5oumi0z/AABP9D_2fuDHrLh5fjoWTlNva?dl=0