Quick tip 1: Those that still have an empty game request page on FB should try looking at in Internet Explorer and then go back and look at it in Google Chrome. Finally clean up your probably many requests.
Quick tip 2: Uninstalling FVE and installing FVE 4.0.19 might get 4.0.19 to work for you. There is a little updating bug and I’m looking into it right now. For now a clean install will workaround this.