Some of the issues I have been experiencing in my short time on VGChartz:
1) Unable to link Nintendo Network ID (the one associated with my Wii U - not the numerical coded one) and my Xbox LIVE gamertag doesn't connect (not that I use mine anymore but it doesn't show up in "Networks")
2) Certain games do not exist when trying to add to my currently playing list e.g. Mario Kart 8 or Pikmin 3 - Also box art isn't loading for many of the Wii U games, perhaps all of them
Thank you for taking your time to work on the issues for this site.
Feel free to check out my stream on twitch