Why does TikTok keep showing me the same videos over and over?

This has been driving me a bit crazy lately. I keep seeing the exact same videos multiple times, sometimes even in the same day. Not just similar content - literally the same clips. I scroll, refresh, come back later… and there they are again. It makes the app feel kinda repetitive and less fun to use

Is this a bug or is TikTok just pushing certain videos super aggressively now?