Advancements not working

In my survival realm, when I click on the advancements option on the pause menu, or I press l, it says that “there isn’t anything here.” I am in the latest release, 1.16.4. I have tried making a crafting table, and mining stone. I had a ton of the advancements, but they all disappeared. Is it because I am playing on the same realm with the same account, but with two different computers?