BuckeyBob, thanks for investigating. Unfortunately I've flown a few missions since, but it is a common occurrence, so I'll take a look at the logs next time I see it. I don't think it's a problem with the texture though. I would think it's got more to do with WOFF placing the texture, any cloud texture too many times. But my knowledge of the subject is a little bit cloudy.
Personally, I think it's just a genetic anomaly due to frequent in breeding by the cloud mating, much like the Spanish royal lineage centuries ago. All we need is some new blood in the lines so to Speak!