Yeah, that's how life is in XCF. Get screwed over by strategic RNG in many different ways.
The bases are another one of these 8*4% things Solarius likes. Jan '99 is actually the first month when you get an extra 2*12% chance for bases, which should roughly double your odds of getting a base. So the future is a bit brighter (and other cults' bases come in more frequently, too).
Durathread factory would be a good guaranteed mission, but it stops spawning once you research Durathread manufacturing.
If I were you, I'd either reload myself a base at the end of the next month, or just edit one in.