Sometimes page goes bad, reload is needed. But as streamer you want also look back and pick up the conversation. So reload page with like 10 last lines as possible above, that will help a lot. Empty chat is not good.
Weird enough, if i replay part of stream, chat will show up. Why not with reload page?

Option to mute parts with DMCA music is better than remove video. Unless voice is important, then remove whole part.