Do you see three dots everywhere on your Mastodon instance?
Is the console on your instance flodded with
WebSocket connection to 'wss://yourinstance.website/api/v1/streaming/?stream=public:local&access_token=blahblahblah' failed: Error during WebSocket handshake: Unexpected response code: 502
WELL FOR SOME REASON NONE OF THE MASTODON SETUP GUIDES TELL YOU HOW TO SET THIS UP EVEN THOUGH ITS SUPER EASY AND ITS OBNOXIOUS AF
You need to do two things: