When playing on desktop on private internet (house ethernet/wifi), the 'Start Game' button is grayed out with my avatar displaying offline. After refreshing the page, my personal avatar may disappear entirely with just other players' avatars listed in the lobby. This also occurs when playing on other browsers (firefox, chrome, opera, librewolf), restarting the computer, resetting DNS, disabling hardware acceleration, and switching to a mobile device. However, when using mobile data (or hotspotting), party works as intended, though it is unsustainable due to data limits.
Attached is an image of grayed out (offline) avatar and grayed out 'Start Game' button.