This is my rocket landing (only the capsule module has returned):
It was my first hydrogen rocket. But according to these stats, it couldn't go anywhere:
Thoughts on how it happened: I think it has to do with some rebuilding of pipes that lead to liquid fuel tanks. I did remove some of them and then built new ones and then the game crashed. I reloaded the game and repeated rebuilding without any crashes but after that, only when the rocket returned I saw it missing most of its parts.
Load the save file and see its landing in about a minute. I'm not sure how to actually repeat this issue. Maybe use a removal tool when the rocket is on its mission. Maybe remove pipes leading to fuel tanks and then rebuild them.