It doesn't work on a pirated server because it can't load skins because it doesn't support SkinsRestorer. It crashes and spams the console:

[16:29:19 WARN]: [BetterReplay] Task #3372 for BetterReplay v1.3.1-SNAPSHOT generated an exception java.lang.IllegalStateException: Failed to request texture properties with their UUID e60dad04ee6b369e94a69a7793daed39! Response code: 204 at packetevents-spigot-2.11.2.jar/com.github.retrooper.packetevents.util.MojangAPIUtil.requestPlayerTextureProperties(MojangAPIUtil.java:47) ~[packetevents-spigot-2.11.2.jar:?] at BetterReplay-1.3.1-SNAPSHOT.jar/me.justindevb.replay.util.SpawnFakePlayer.<init>(SpawnFakePlayer.java:43) ~[BetterReplay-1.3.1-SNAPSHOT.jar:?] at BetterReplay-1.3.1-SNAPSHOT.jar/me.justindevb.replay.RecordedPlayer.spawn(RecordedPlayer.java:58) ~[BetterReplay-1.3.1-SNAPSHOT.jar:?] at BetterReplay-1.3.1-SNAPSHOT.jar/me.justindevb.replay.ReplaySession.lambda$start$1(ReplaySession.java:220) ~[BetterReplay-1.3.1-SNAPSHOT.jar:?] at BetterReplay-1.3.1-SNAPSHOT.jar/me.justindevb.replay.libs.folialib.impl.SpigotImplementation.lambda$runTimer$4(SpigotImplementation.java:169) ~[BetterReplay-1.3.1-SNAPSHOT.jar:?] at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:88) ~[paper-1.21.jar:1.21-130-b1b5d4c] at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:475) ~[paper-1.21.jar:1.21-130-b1b5d4c] at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1726) ~[paper-1.21.jar:1.21-130-b1b5d4c] at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:473) ~[paper-1.21.jar:1.21-130-b1b5d4c] at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1598) ~[paper-1.21.jar:1.21-130-b1b5d4c] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1304) ~[paper-1.21.jar:1.21-130-b1b5d4c] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.jar:1.21-130-b1b5d4c] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

Amazing

It tracks everything, perfect for making scenes with multiple people when you dont have enough real actors

Would be cool to add more video making tools like grouping recordings into one