This was quoted from THQ's WWEGames website directly:
"Dear WWE Games Universe,
We wanted to let you know that we recently deployed new updates that should deal with most of the issues you're experiencing with WWE '12 online Community Creations. Although most issues should be resolved, there will still be tuning going on over the next few days to ensure that your online experience is as smooth as possible.
Because we're working 24/7 on our new dedicated online servers, we're also constantly checking for feedback from all of you. Please don't hesitate to share your feedback on Facebook, Twitter, and our official forums, as those channels will be monitored closely.
Thanks so much for your patience and understanding over these past few days. We're working diligently to resolve this, and we're getting much closer to having the majority of these issues behind us.