It seems my 062 has a small crack. http://imgur.com/gallery/NZiPN the first picture shows the first cracking i noticed. The second picture shows a small crack that i cant feel, however every 2 days it leaks out white stuff.. I asked workswell what to do.. they said ride it harder to see if it is a paint crack or a structural crack. I have since ridden it 500km standing more and mashing it as much as I can.. I really can't say if it has gotten any larger, but we will see since I have only had my frame for 1 year/1500km.. I weight 200lbs and ride 99% xc trails with no major jumps/drops..
Will keep others up to date on the process with them.
That's not good at all. Couple of questions though.
1) is the white stuff a powder or liquid?
2) what does the seat post look like?
If you have been standing more and the crack isn't growing, it could be caused by the stress that is put on the seat and seatpost which is will flex the seat tube back into the stays. Maybe try riding harder but still being seated? Like another has said, try lightly tapping around the crack with a coin. If anything is delaminating internally, you will be able to hear a difference in the sound. Try tapping other random places on the frame for a sound comparison.
Either way, good luck and hopefully Workswell takes care of it. I have the same frame so I am really hoping they do. A Workswell representative joined the forum awhile back. Here is a link to the thread they started.
http://chinertown.com/index.php/topic,1072.0.html