Bought Forza 4 on Xbox One X, but it Doesn't Show up on My PC as Play Anywhere

I bought Forza 4, and to my understanding this is supposed to be a Play Anywhere title, and be also associated with my Windows Store account (this is the way the previous Play Anywhere titles that I’ve purchased have worked).

However, it does not show up in “My Games” in the Windows Store so I can install and play it on my PC. The DEMO does (which I also have installed on my Xbox One prior to purchasing the full version), but the full version does not. I really want to play it on my PC. Can anyone help me with this?