AFAIK, the only "woma" problem is not with the womas that most people have, but with NERD's "hidden gene" woma (which is NOT in any way related to the more common woma). The homozygous ("super") form of that is called the pearl, and they die shortly after hatching.
Female caramel albinos are rumored to be infertile. After reading through the thread below, it sounds to me as though, as jsmorphs alluded to, they are capable of producing fertile eggs but that they tend to lay a very high proportion of slugs. You can't call them infertile with even a few good eggs, but in my mind, I would consider them subfertile until proven otherwise. I would need a whole lotta pictures of caramel females sitting on 4+ egg clutches with NO slugs to start believing otherwise.
http://www.reptileradio.net/reptiler...ad.php?t=20146
That's just my line of thought, though, based solely on reading that one thread (in which, unlike other, more "speculative" threads, a number of folks have come forward with numbers and pictures). Others may feel they need more evidence one way or the other to form a conclusion, which is also perfectly logical.
IMO, it isn't reason to avoid the caramels -- I really like the morph, in fact just bought a male who hasn't even arrived yet -- but it was enough to make me re-think and alter my original game plan with them.
I haven't heard even any rumors of other morphs being infertile.