This happens when your internet connection is unstable or the app can't reach Telegram servers. Check if other apps requiring internet work properly. Switch between Wi-Fi and mobile data to see which connection performs better. If you're on Wi-Fi, try moving closer to the router or restart it. Force close the app completely and reopen it — sometimes the connection just needs a fresh start. Clear the app cache in your phone settings under Storage or App Management section.
When media files show empty placeholders or spinning loaders, it usually means data transfer issues. Check your remaining mobile data or internet speed. Telegram automatically adjusts quality based on connection, but sometimes it helps to tap Settings, Data and Storage, then temporarily disable Auto-download settings. This forces manual download and often works better on slow connections. Make sure you have enough free storage space on your device — media files need room to download.
Outdated app versions cause most stability problems. Update Telegram through your app store immediately. If crashes continue, reinstall the app completely — this fixes corrupted installation files. Check if your phone operating system needs updating too. Free up device memory by closing background apps. For Android users, clearing app data resets everything but requires logging in again, so save important media first.
The search index needs time to build after installation or updates. Wait a few hours if you just installed the app. Search only works for chats that loaded on your device — scroll through older conversations to make them searchable. Try searching with different keywords or shorter phrases. Restart the app to refresh the search database.