IAmAKerbal

Yesterday I launched a rocket with Bob, Bill, and Jeb in the rocket, but only Jeb survived. Today I come back to bob and bill still saying K.I.A, and yes, I have turned on respawning. I tried to timewarp like 2 months, but they still weren't back. I even edited a quicksave file to say "Available" instead of "Dead", loaded the quicksave I edited, but they were still dead! Did they get corrupted or do they need more time?