Rocket return bugged if rocket botom gest entomber

Condition for the bug to appears :

  - The bottom of a rocket gets entombed when the rocket is on mission (due to meteor showers)

  - the gave is saved and exited

Consequence :

  - When this savegame is loaded, the bottom of the entomber rocket appears on screen (see attached file) bottom rocjket.bmp

 - upon return, the upper part of the rocket get destroyed (exept the command capsule and the dupe inside)

not : no problem if I avoid saving and loading the game