Kerbal Space Program

The Supreme Journey contract, in this case "Supreme Gilly 4 Journey" resets itself if the entire craft is not returned to Kerbin, or if any part is destroyed upon re-entry.

Steps to Replicate:
1) Embark on "Supreme Journey"-type contract
2) Land on all required celestial bodies with a craft which includes a lander module and a return module
3a) Separate the landing stage and land the return module on Kerbin OR
3b) Attempt to land both modules at once, but allow any single part to explode during re-entry

Expected: So long as the lander and re-entry modules are launched together as a single craft, you should be able to return with a separate landing stage and have it count. Otherwise, the Apollo program would have apparently not landed on the Moon according to this KSP contract criteria.

Result/Observed: Once the landing requirements are met, the entire craft as of that point must be returned to the surface of Kerbin without any single part exploding or moving too far from each other.

Fixes/Workarounds: Using the Alt+12 Cheat menu, land the entire craft by disabling maximum temperature and crash damage.

Notes: I had been using a few mods, but the bug still occurs when the mods are removed