Does it also reset your look to the default one? Can you post a screenshot of your outfit before it changed back? Maybe there's some particular makeover setting that doesn't save on log out.

Character look doesent matter, ive changed my character when it changed at the beginning. And yes, it turns into default man. First time when it happend, my networck suked a bit and I reconnected. After that i saw message that says something like that: r32r3ftrfw3456tew(some random numbers and letters) is already in you friendlist

Happend again, dif acc, dif character look. Happend like when i lagged (caused by network) , Reconnected and logged out again and then reconnected and then b00m, Default character look

The server automatically resets your look when an invalid look packet arrives. I'll apply a fix in the next update that the server will reject that packets unless you click the character design screen. If you see it happening again in 1-2 days, please let me know it!