The most common culprit is bandwidth. Twitch recommends at least 5 Mbps for stable 1080p playback. Run a speed test, then check if other devices on the same network are eating up the connection. If speeds look fine, try switching the stream quality manually — click the gear icon and drop it from Auto to 720p or 480p. Clearing the browser cache also helps more often than you'd expect.
This usually happens in Chrome or Edge when hardware acceleration conflicts with the video player. Go to browser settings, disable hardware acceleration, and reload the page. If you're using the desktop app, try the web version instead — sometimes that alone fixes it.
If your messages disappear or show a sending error, the channel likely has slow mode, subscriber-only mode, or you're temporarily timed out. Check the chat info panel. If none of that applies, the issue is usually a broken WebSocket connection — refreshing the page restores it.
Watchtime tracking depends on an active, visible browser tab. Background tabs or power-saving modes can pause the tracker. Make sure the stream tab stays in focus, and double-check that your Twitch account is properly linked under Drops & Rewards in settings.
Push notifications for live streams often stop working after OS updates reset app permissions. On Android, go to app settings and re-enable notifications manually. On iPhone, check Settings → Notifications → Twitch and make sure alerts are allowed.