Typekit Fonts Still "Missing" in Prototype

I feel like I've tried everything, but nothing works. I have the XD app and CC apps on my phone. I'm signed in. It works perfect on desktop. No matter what my fonts still never sync to my mobile prototype! I can't show anyone my things on mobile because of how awful it looks without the proper fonts. I have searched EVERYWHERE for the answer and I haven't found anything. Here is the bane of my existence, step by step:

1. Already logged into Creative Suite on my phone
2. Open XD app
3. Open my document
4. Little gray bar says "syncing fonts..."
5. Little gray bar says "4 fonts missing!"

I have gone into the XD app settings and tried to sync my fonts, I've restarted and reuploaded and uninstalled and reinstalled everything I could think of...

Has ANYONE ever successfully synced a typekit font to their XD mobile app?

The font in question is Proxima Nova Condensed.