Yes, as explained in this unofficial FAQ, this can happen following an update. I'll speed things up for you.
Thanks, this is greatly appreciated, btw will this happen every time I update the game or even tweak something in the page? I did find this FAQ which explains a lot, since I did make minor tweaks to my page a few months after I updated the game. but it's kinda annoying how my game will be hidden every time I modify the page.
