Hey, I can see 16 boards under your "Playing" tab. It loads few first and then it loads more after you scroll to the bottom. If this still happens, please let me know what device and browser you are using. Thanks
This is intended behavior in Lichess. I assume it's to reduce load on the server and/or lag on the client, because everyone goes through the home page. Pinning the "Playing" page or bookmarking it in the browser might be helpful.