If you see something showing up in all red, this usually means the texture associated with that object didn't load. This might be a loading issue, and some players have found restarting will sometimes take care of the red object. If it persists, you'll want to contact support. Support may ask you for a DXDiag file to see if your computer might be a little thin on RAM or vRAM and be able to make further recommendations.
A long time ago, once all my characters showed up in plain, bright red wizard clothes. Pirates, in Wizard clothing. I burst out laughing. Though it only lasted a minute or so and hasn't happened again ever since. I wish I took a screen shot of it