There's been an on going texture bug for the past year now. It's extremely sporadic when it occurs and wasn't occurring for everyone all the time. It seems recently this is occurring more and more for more people now.
What happens is someone will build something out of prims then place their textures on there and stretch them to fit the section. Then for some random reason, while the object is sitting in world, it will suddenly change placement or the entire texture. Or if you rez the object it'll have different texture sizing or placement, etc.
Since this has been going on for quite some time, as in a year now, is this something being looked at now for fixing in the very near future? I've seen this happen on the regular SL Client and the First Look Client. It's all server side not the clients. It's in the list of Known Issues as a critical bug but it's a show stopper bug since people cannot sell something they made because all the texture will revert on the buyer at some point.
Can you please give us an approximate date on a fix? So we can all continue selling our products or making new things to improve the enviroment of SL.
Edited to add this link to a related post in the Design and Texture forum.