Sorry for the late response. I am running Forge 1.12.2 (12.23.5.2769), and I have Enchantmentglint, LunatriusCore, Optifine, QuickPlay, Schematica, 5zig, And Toro crafts Damage Indicators Mod (If you would like the exact files you can add me on discord SecondSword#5965). The short player render distance is only Bedwars as far as I can tell but only on certain maps like Doubles Steampunk and happens both during the recording of the replay and when I actually view the replay. I would be spectating my friend and as soon as I am like 40 blocks away he disappears and I exit spectator mode.