Please accept our apologies for this VP issue! It seems to be a UI bug at the moment. I suggest you try the following:
Typing /reloadui into the chat window.
Logging out and logging back in.
Switch characters and then switch back.
If all else fails, a soft reset should do the trick. Exit the game and launcher completely for at least 15 minutes. This will cause the character instance information to reset and allow the game to run properly.
If you have not done so already, please report this from within game using the /bug command.