After a replay of me playing bed wars, I skipped to the end of the match to get ready to edit it. Then, I realized that the last two players were completely invisible. I could still see the particles he was giving off, but his model was not showing up. Eventually, I did see him, but he was stuck in place, head spazzing out, tinted red as if he was getting hit, and his legs were spazzing out, looking like he was running. Sometimes I'll look back at the players and they'll be in a different position. It weird, though, as one of the players used to be fine until I relaunched the replay. I do not have any mods installed other than the replay mod.