This has happened to like 5 people and now me T-T tabs are disappearing again!!! I relogged to use rasengan at full power and then I was gonna shadow bind someone and my gen tab was gone! And since i'm a nara that like makes my character useless now. I heared other people saying that there tabs were missing to! It might be the same bug as last time...
Stego has addressed this on the game he said take screen shots of stats and send it to his email at Stegorawr@hotmail.com i would suggest if you have something like a rod 5 or the canes to screen shot your inventory as well.