I keep getting more and more issues with Replay mod. This time at the start of the recording everything was fine, normal amount of players on the screen and everything running smoothly. When I fast-forwarded and went later into the video things started screwing up. Players names appeared multiple times on the list, some of the players on the list just showed a black screen, whilst some showed what was actually happening in the video. My character was just spazzing with lag, while some players weren't and some were. Chunk loading was very varied with each player, some loaded the chunk around them some didn't. Here is the video
https://www.youtube.com/watch?v=19EiBYMj_m8&feature=youtu.be